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140472868 = 222329371423
BaseRepresentation
bin10000101111101…
…11001000100100
3100210022202112211
420113313020210
5241430112433
621534453204
73323666614
oct1027671044
9323282484
10140472868
1172325388
123b064204
1323144653
1414928a44
15c4eb8cd
hex85f7224

140472868 has 48 divisors (see below), whose sum is σ = 272724480. Its totient is φ = 63068544.

The previous prime is 140472863. The next prime is 140472869. The reversal of 140472868 is 868274041.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 140472868.

It is not an unprimeable number, because it can be changed into a prime (140472863) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 98005 + ... + 99427.

It is an arithmetic number, because the mean of its divisors is an integer number (5681760).

Almost surely, 2140472868 is an apocalyptic number.

It is an amenable number.

140472868 is a deficient number, since it is larger than the sum of its proper divisors (132251612).

140472868 is a wasteful number, since it uses less digits than its factorization.

140472868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516 (or 1514 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 140472868 is about 11852.1250415274. The cubic root of 140472868 is about 519.8333637662.

The spelling of 140472868 in words is "one hundred forty million, four hundred seventy-two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 23 29 37 46 58 74 92 116 148 667 851 1073 1334 1423 1702 2146 2668 2846 3404 4292 5692 24679 32729 41267 49358 52651 65458 82534 98716 105302 130916 165068 210604 949141 1210973 1526879 1898282 2421946 3053758 3796564 4843892 6107516 35118217 70236434 140472868