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72857088001 = 1917335362791
BaseRepresentation
bin100001111011010011…
…1101111000000000001
320222001112110112210201
41003312213233000001
52143202403304001
653245312125201
75156316013165
oct1036647570001
9228045415721
1072857088001
1128997a21625
1212153836801
136b41342279
14375225aca5
151d66375501
hex10f69ef001

72857088001 has 16 divisors (see below), whose sum is σ = 77354720640. Its totient is φ = 68428039680.

The previous prime is 72857087957. The next prime is 72857088011. The reversal of 72857088001 is 10088075827.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 72857088001 - 29 = 72857087489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72857088011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128916 + ... + 1191706.

It is an arithmetic number, because the mean of its divisors is an integer number (4834670040).

Almost surely, 272857088001 is an apocalyptic number.

It is an amenable number.

72857088001 is a deficient number, since it is larger than the sum of its proper divisors (4497632639).

72857088001 is a wasteful number, since it uses less digits than its factorization.

72857088001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63336.

The product of its (nonzero) digits is 250880, while the sum is 46.

The spelling of 72857088001 in words is "seventy-two billion, eight hundred fifty-seven million, eighty-eight thousand, one".

Divisors: 1 19 173 353 3287 6707 61069 62791 1160311 1193029 10862843 22165223 206394017 421139237 3834583579 72857088001