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100311313213 = 659915200987
BaseRepresentation
bin101110101101100000…
…1010010101100111101
3100120220212102200200201
41131123001102230331
53120414144010323
6114025443323501
710150544044126
oct1353301225475
9316825380621
10100311313213
11395a6137351
1217536080591
1395c816ba47
144bd853b04d
1529217308ad
hex175b052b3d

100311313213 has 4 divisors (see below), whose sum is σ = 100326520800. Its totient is φ = 100296105628.

The previous prime is 100311313199. The next prime is 100311313231. The reversal of 100311313213 is 312313113001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312313113001 = 866936026429.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100311313213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100311313813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7593895 + ... + 7607092.

It is an arithmetic number, because the mean of its divisors is an integer number (25081630200).

Almost surely, 2100311313213 is an apocalyptic number.

It is an amenable number.

100311313213 is a deficient number, since it is larger than the sum of its proper divisors (15207587).

100311313213 is an equidigital number, since it uses as much as digits as its factorization.

100311313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15207586.

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

Adding to 100311313213 its reverse (312313113001), we get a palindrome (412624426214).

The spelling of 100311313213 in words is "one hundred billion, three hundred eleven million, three hundred thirteen thousand, two hundred thirteen".

Divisors: 1 6599 15200987 100311313213