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1907421264 = 243376191019
BaseRepresentation
bin111000110110000…
…1111000001010000
311220221011001002000
41301230033001100
512401244440024
6513134354000
765160545640
oct16154170120
94827131060
101907421264
11899764911
1245295b900
13245231748
1414147a520
15b26c6cc9
hex71b0f050

1907421264 has 160 divisors (see below), whose sum is σ = 6273408000. Its totient is φ = 543563136.

The previous prime is 1907421247. The next prime is 1907421283. The reversal of 1907421264 is 4621247091.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1871347 + ... + 1872365.

It is an arithmetic number, because the mean of its divisors is an integer number (39208800).

Almost surely, 21907421264 is an apocalyptic number.

1907421264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1907421264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3136704000).

1907421264 is an abundant number, since it is smaller than the sum of its proper divisors (4365986736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1907421264 is a wasteful number, since it uses less digits than its factorization.

1907421264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1650 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1907421264 is about 43674.0342079822. The cubic root of 1907421264 is about 1240.1728132369.

The spelling of 1907421264 in words is "one billion, nine hundred seven million, four hundred twenty-one thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 216 252 336 378 432 504 619 756 1008 1019 1238 1512 1857 2038 2476 3024 3057 3714 4076 4333 4952 5571 6114 7133 7428 8152 8666 9171 9904 11142 12228 12999 14266 14856 16304 16713 17332 18342 21399 22284 24456 25998 27513 28532 29712 33426 34664 36684 38997 42798 44568 48912 51996 55026 57064 64197 66852 69328 73368 77994 85596 89136 103992 110052 114128 116991 128394 133704 146736 155988 171192 192591 207984 220104 233982 256788 267408 311976 342384 385182 440208 467964 513576 623952 630761 770364 935928 1027152 1261522 1540728 1871856 1892283 2523044 3081456 3784566 4415327 5046088 5676849 7569132 8830654 10092176 11353698 13245981 15138264 17030547 17661308 22707396 26491962 30276528 34061094 35322616 39737943 45414792 52983924 68122188 70645232 79475886 90829584 105967848 119213829 136244376 158951772 211935696 238427658 272488752 317903544 476855316 635807088 953710632 1907421264