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65948920632 = 2333760477213
BaseRepresentation
bin111101011010110111…
…001010101100111000
320022020002112021201000
4331122313022230320
52040030410430012
650144014125000
74523163401430
oct753267125470
9208202467630
1065948920632
1125a724a01a1
12109461b0760
1362b008047a
1432989a72c0
151aaeb4addc
hexf5adcab38

65948920632 has 128 divisors (see below), whose sum is σ = 209425305600. Its totient is φ = 18836820864.

The previous prime is 65948920591. The next prime is 65948920633. The reversal of 65948920632 is 23602984956.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65948920633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9139458 + ... + 9146670.

It is an arithmetic number, because the mean of its divisors is an integer number (1636135200).

Almost surely, 265948920632 is an apocalyptic number.

It is an amenable number.

65948920632 is an abundant number, since it is smaller than the sum of its proper divisors (143476384968).

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

65948920632 is a wasteful number, since it uses less digits than its factorization.

65948920632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13282 (or 13272 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 65948920632 in words is "sixty-five billion, nine hundred forty-eight million, nine hundred twenty thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1512 6047 7213 12094 14426 18141 21639 24188 28852 36282 42329 43278 48376 50491 54423 57704 64917 72564 84658 86556 100982 108846 126987 129834 145128 151473 163269 169316 173112 194751 201964 217692 253974 259668 302946 326538 338632 380961 389502 403928 435384 454419 507948 519336 605892 653076 761922 779004 908838 1015896 1142883 1211784 1306152 1363257 1523844 1558008 1817676 2285766 2726514 3047688 3635352 4571532 5453028 9143064 10906056 43617011 87234022 130851033 174468044 261702066 305319077 348936088 392553099 523404132 610638154 785106198 915957231 1046808264 1177659297 1221276308 1570212396 1831914462 2355318594 2442552616 2747871693 3140424792 3663828924 4710637188 5495743386 7327657848 8243615079 9421274376 10991486772 16487230158 21982973544 32974460316 65948920632