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313123230100 = 22523131232301
BaseRepresentation
bin1001000111001111001…
…10010101000110010100
31002221020002121012010101
410203213212111012110
520112234021330400
6355502525303444
731423325353402
oct4434746250624
91087202535111
10313123230100
1111088199a30a
1250828404b84
13236b18b8815
1411225dc8472
15822985356a
hex48e7995194

313123230100 has 18 divisors (see below), whose sum is σ = 679477409534. Its totient is φ = 125249292000.

The previous prime is 313123230097. The next prime is 313123230103. The reversal of 313123230100 is 1032321313.

It is an interprime number because it is at equal distance from previous prime (313123230097) and next prime (313123230103).

It can be written as a sum of positive squares in 3 ways, for example, as 18261197956 + 294862032144 = 135134^2 + 543012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313123230103) 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, 1565616051 + ... + 1565616250.

Almost surely, 2313123230100 is an apocalyptic number.

It is an amenable number.

313123230100 is an abundant number, since it is smaller than the sum of its proper divisors (366354179434).

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

313123230100 is a wasteful number, since it uses less digits than its factorization.

313123230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131232315 (or 3131232308 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 313123230100 its reverse (1032321313), we get a palindrome (314155551413).

The spelling of 313123230100 in words is "three hundred thirteen billion, one hundred twenty-three million, two hundred thirty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 3131232301 6262464602 12524929204 15656161505 31312323010 62624646020 78280807525 156561615050 313123230100