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72869692590 = 2325809663251
BaseRepresentation
bin100001111011101011…
…1110100010010101110
320222002102011221001100
41003313113310102232
52143214120130330
653250442223530
75156531111232
oct1036727642256
9228072157040
1072869692590
11289a4050642
1212157ab4ba6
136b43b364c6
143753bbc5c2
151d67515060
hex10f75f44ae

72869692590 has 24 divisors (see below), whose sum is σ = 189461200968. Its totient is φ = 19431918000.

The previous prime is 72869692547. The next prime is 72869692631. The reversal of 72869692590 is 9529696827.

It is a super-2 number, since 2×728696925902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404831536 + ... + 404831715.

It is an arithmetic number, because the mean of its divisors is an integer number (7894216707).

Almost surely, 272869692590 is an apocalyptic number.

72869692590 is an abundant number, since it is smaller than the sum of its proper divisors (116591508378).

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

72869692590 is a wasteful number, since it uses less digits than its factorization.

72869692590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809663264 (or 809663261 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 72869692590 in words is "seventy-two billion, eight hundred sixty-nine million, six hundred ninety-two thousand, five hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 809663251 1619326502 2428989753 4048316255 4857979506 7286969259 8096632510 12144948765 14573938518 24289897530 36434846295 72869692590