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1048912290 = 2325191573907
BaseRepresentation
bin111110100001010…
…010000110100010
32201002201021011100
4332201102012202
54122010143130
6252025455230
734664415216
oct7641220642
92632637140
101048912290
114990a1368
12253341516
1313940447a
149d440946
1562143c60
hex3e8521a2

1048912290 has 96 divisors (see below), whose sum is σ = 2889731520. Its totient is φ = 263233152.

The previous prime is 1048912283. The next prime is 1048912343. The reversal of 1048912290 is 922198401.

It is a super-2 number, since 2×10489122902 = 2200433984226088200, which contains 22 as substring.

It is a Curzon 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 47 ways as a sum of consecutive naturals, for example, 266517 + ... + 270423.

It is an arithmetic number, because the mean of its divisors is an integer number (30101370).

Almost surely, 21048912290 is an apocalyptic number.

1048912290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1048912290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444865760).

1048912290 is an abundant number, since it is smaller than the sum of its proper divisors (1840819230).

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

1048912290 is a wasteful number, since it uses less digits than its factorization.

1048912290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096 (or 4093 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1048912290 is about 32386.9154134814. The cubic root of 1048912290 is about 1016.0452690527.

The spelling of 1048912290 in words is "one billion, forty-eight million, nine hundred twelve thousand, two hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 57 90 95 114 157 171 190 285 314 342 471 570 785 855 942 1413 1570 1710 2355 2826 2983 3907 4710 5966 7065 7814 8949 11721 14130 14915 17898 19535 23442 26847 29830 35163 39070 44745 53694 58605 70326 74233 89490 117210 134235 148466 175815 222699 268470 351630 371165 445398 613399 668097 742330 1113495 1226798 1336194 1840197 2226990 3066995 3340485 3680394 5520591 6133990 6680970 9200985 11041182 11654581 18401970 23309162 27602955 34963743 55205910 58272905 69927486 104891229 116545810 174818715 209782458 349637430 524456145 1048912290