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140169804 = 22311680817
BaseRepresentation
bin10000101101011…
…01001001001100
3100202202100211020
420112231021030
5241340413204
621524154140
73321265215
oct1026551114
9322670736
10140169804
1172138715
123ab38950
1323069718
141488a40c
15c48bbd9
hex85ad24c

140169804 has 12 divisors (see below), whose sum is σ = 327062904. Its totient is φ = 46723264.

The previous prime is 140169803. The next prime is 140169853. The reversal of 140169804 is 408961041.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (140169803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5840397 + ... + 5840420.

It is an arithmetic number, because the mean of its divisors is an integer number (27255242).

Almost surely, 2140169804 is an apocalyptic number.

It is an amenable number.

140169804 is an abundant number, since it is smaller than the sum of its proper divisors (186893100).

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

140169804 is a wasteful number, since it uses less digits than its factorization.

140169804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11680824 (or 11680822 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 140169804 is about 11839.3329203972. The cubic root of 140169804 is about 519.4592554325.

The spelling of 140169804 in words is "one hundred forty million, one hundred sixty-nine thousand, eight hundred four".

Divisors: 1 2 3 4 6 12 11680817 23361634 35042451 46723268 70084902 140169804