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22331200031 = 767313152123
BaseRepresentation
bin10100110011000010…
…110001001000011111
32010122022002111111122
4110303002301020133
5331213241400111
614131523041155
71420250032310
oct246302611037
963568074448
1022331200031
11951a420118
1243b28101bb
13214b65503a
14111bb56607
158aa751cdb
hex5330b121f

22331200031 has 16 divisors (see below), whose sum is σ = 25985213184. Its totient is φ = 18794977344.

The previous prime is 22331199967. The next prime is 22331200033. The reversal of 22331200031 is 13000213322.

It is a cyclic number.

It is not a de Polignac number, because 22331200031 - 26 = 22331199967 is a prime.

It is a super-2 number, since 2×223312000312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22331199982 and 22331200009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331200033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70736 + ... + 222858.

It is an arithmetic number, because the mean of its divisors is an integer number (1624075824).

Almost surely, 222331200031 is an apocalyptic number.

22331200031 is a deficient number, since it is larger than the sum of its proper divisors (3654013153).

22331200031 is a wasteful number, since it uses less digits than its factorization.

22331200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152510.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 22331200031 its reverse (13000213322), we get a palindrome (35331413353).

The spelling of 22331200031 in words is "twenty-two billion, three hundred thirty-one million, two hundred thousand, thirty-one".

Divisors: 1 7 67 313 469 2191 20971 146797 152123 1064861 10192241 47614499 71345687 333301493 3190171433 22331200031