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872865007231 = 7143698678057
BaseRepresentation
bin11001011001110101100…
…11110000011001111111
310002110000110111121221011
430230322303300121333
5103300111420212411
61504553314220051
7120030260100310
oct14547263603177
93073013447834
10872865007231
113071a85a5138
12121200884627
1364406b32379
1430365684607
1517a8a1cdc21
hexcb3acf067f

872865007231 has 8 divisors (see below), whose sum is σ = 997629547680. Its totient is φ = 748117851648.

The previous prime is 872865007229. The next prime is 872865007271. The reversal of 872865007231 is 132700568278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 872865007231 - 21 = 872865007229 is a prime.

It is a super-2 number, since 2×8728650072312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872865007271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4238446 + ... + 4439611.

It is an arithmetic number, because the mean of its divisors is an integer number (124703693460).

Almost surely, 2872865007231 is an apocalyptic number.

872865007231 is a deficient number, since it is larger than the sum of its proper divisors (124764540449).

872865007231 is a wasteful number, since it uses less digits than its factorization.

872865007231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8692433.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 872865007231 in words is "eight hundred seventy-two billion, eight hundred sixty-five million, seven thousand, two hundred thirty-one".

Divisors: 1 7 14369 100583 8678057 60746399 124695001033 872865007231