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313104221431 = 1923397045391
BaseRepresentation
bin1001000111001100111…
…01110100010011110111
31002221011202211110010121
410203212131310103313
520112214140041211
6355501010032411
731423004653501
oct4434635642367
91087152743117
10313104221431
11110872196871
1250821b78707
13236aa9916a1
141122367ad71
158227d4b271
hex48e67744f7

313104221431 has 8 divisors (see below), whose sum is σ = 329724345600. Its totient is φ = 296498192760.

The previous prime is 313104221389. The next prime is 313104221459. The reversal of 313104221431 is 134122401313.

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

It is not a de Polignac number, because 313104221431 - 223 = 313095832823 is a prime.

It is a super-2 number, since 2×3131042214312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313104221396 and 313104221405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313104221471) 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, 3478255 + ... + 3567136.

It is an arithmetic number, because the mean of its divisors is an integer number (41215543200).

Almost surely, 2313104221431 is an apocalyptic number.

313104221431 is a deficient number, since it is larger than the sum of its proper divisors (16620124169).

313104221431 is a wasteful number, since it uses less digits than its factorization.

313104221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7047749.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 313104221431 its reverse (134122401313), we get a palindrome (447226622744).

The spelling of 313104221431 in words is "three hundred thirteen billion, one hundred four million, two hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 19 2339 44441 7045391 133862429 16479169549 313104221431