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311100013 = 755917949
BaseRepresentation
bin10010100010110…
…000001001101101
3210200101111222201
4102202300021231
51114120200023
650511541501
710465210060
oct2242601155
9720344881
10311100013
1114a676054
128822a891
134c5b6263
142d4628d7
151c4a2bad
hex128b026d

311100013 has 8 divisors (see below), whose sum is σ = 355651200. Its totient is φ = 266575920.

The previous prime is 311099993. The next prime is 311100029. The reversal of 311100013 is 310001113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311100013 - 217 = 310968941 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 (311100043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35163 + ... + 43111.

It is an arithmetic number, because the mean of its divisors is an integer number (44456400).

Almost surely, 2311100013 is an apocalyptic number.

It is an amenable number.

311100013 is a deficient number, since it is larger than the sum of its proper divisors (44551187).

311100013 is an equidigital number, since it uses as much as digits as its factorization.

311100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13547.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 311100013 is about 17638.0274690794. The cubic root of 311100013 is about 677.5895139143.

Adding to 311100013 its reverse (310001113), we get a palindrome (621101126).

The spelling of 311100013 in words is "three hundred eleven million, one hundred thousand, thirteen".

Divisors: 1 7 5591 7949 39137 55643 44442859 311100013