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313401109 = 726395941
BaseRepresentation
bin10010101011100…
…001111100010101
3210211201102111111
4102223201330111
51120212313414
651033135021
710523602600
oct2253417425
9724642444
10313401109
111509a798a
1288b5a471
134cc10758
142d8a1337
151c7a98c4
hex12ae1f15

313401109 has 6 divisors (see below), whose sum is σ = 364568694. Its totient is φ = 268629480.

The previous prime is 313401107. The next prime is 313401119. The reversal of 313401109 is 901104313.

313401109 = T1991 + T1992 + ... + T2137.

It can be written as a sum of positive squares in only one way, i.e., 313396209 + 4900 = 17703^2 + 70^2 .

It is not a de Polignac number, because 313401109 - 21 = 313401107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313401109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313401107) 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, 3197922 + ... + 3198019.

It is an arithmetic number, because the mean of its divisors is an integer number (60761449).

Almost surely, 2313401109 is an apocalyptic number.

It is an amenable number.

313401109 is a deficient number, since it is larger than the sum of its proper divisors (51167585).

313401109 is an equidigital number, since it uses as much as digits as its factorization.

313401109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395955 (or 6395948 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 313401109 is about 17703.1383940814. The cubic root of 313401109 is about 679.2560411789.

The spelling of 313401109 in words is "three hundred thirteen million, four hundred one thousand, one hundred nine".

Divisors: 1 7 49 6395941 44771587 313401109