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3131113230100 = 225231311132301
BaseRepresentation
bin101101100100000100111…
…001000100111100010100
3102002022221122221110200101
4231210010321010330110
5402300004441330400
610354225155023444
7442133622216202
oct55440471047424
912068848843611
103131113230100
11aa7996877089
124269b759ab84
1319935523826b
14ab792186072
15566aa1a356a
hex2d904e44f14

3131113230100 has 18 divisors (see below), whose sum is σ = 6794515709534. Its totient is φ = 1252445292000.

The previous prime is 3131113230061. The next prime is 3131113230101. The reversal of 3131113230100 is 10323111313.

It can be written as a sum of positive squares in 3 ways, for example, as 1447954704 + 3129665275396 = 38052^2 + 1769086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131113230101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15655566051 + ... + 15655566250.

Almost surely, 23131113230100 is an apocalyptic number.

It is an amenable number.

3131113230100 is an abundant number, since it is smaller than the sum of its proper divisors (3663402479434).

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

3131113230100 is a wasteful number, since it uses less digits than its factorization.

3131113230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31311132315 (or 31311132308 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 3131113230100 its reverse (10323111313), we get a palindrome (3141436341413).

The spelling of 3131113230100 in words is "three trillion, one hundred thirty-one billion, one hundred thirteen million, two hundred thirty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 31311132301 62622264602 125244529204 156555661505 313111323010 626222646020 782778307525 1565556615050 3131113230100