Search a number
-
+
31300053321 = 3163563911351
BaseRepresentation
bin11101001001101000…
…001110100101001001
32222210100120110021010
4131021220032211021
51003100303201241
622213512434133
72155434030525
oct351150164511
988710513233
1031300053321
1112302078369
1260963a8949
132c4a81b414
14172cd80d85
15c32d29d16
hex749a0e949

31300053321 has 16 divisors (see below), whose sum is σ = 42000583680. Its totient is φ = 20733181200.

The previous prime is 31300053311. The next prime is 31300053347. The reversal of 31300053321 is 12335000313.

It is not a de Polignac number, because 31300053321 - 27 = 31300053193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31300053311) 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, 2751796 + ... + 2763146.

It is an arithmetic number, because the mean of its divisors is an integer number (2625036480).

Almost surely, 231300053321 is an apocalyptic number.

It is an amenable number.

31300053321 is a deficient number, since it is larger than the sum of its proper divisors (10700530359).

31300053321 is a wasteful number, since it uses less digits than its factorization.

31300053321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17156.

The product of its (nonzero) digits is 810, while the sum is 21.

Adding to 31300053321 its reverse (12335000313), we get a palindrome (43635053634).

The spelling of 31300053321 in words is "thirty-one billion, three hundred million, fifty-three thousand, three hundred twenty-one".

Divisors: 1 3 163 489 5639 11351 16917 34053 919157 1850213 2757471 5550639 64008289 192024867 10433351107 31300053321