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312124010225 = 5212484960409
BaseRepresentation
bin1001000101011000000…
…10100110111011110001
31002211122110101120010212
410202230002212323301
520103212221311400
6355215432433505
731356503212046
oct4425402467361
91084573346125
10312124010225
11110409959665
12505a9848895
1323582892761
141116d4011cd
1581bbc78335
hex48ac0a6ef1

312124010225 has 6 divisors (see below), whose sum is σ = 387033772710. Its totient is φ = 249699208160.

The previous prime is 312124010171. The next prime is 312124010227. The reversal of 312124010225 is 522010421213.

It can be written as a sum of positive squares in 3 ways, for example, as 11952611584 + 300171398641 = 109328^2 + 547879^2 .

It is not a de Polignac number, because 312124010225 - 218 = 312123748081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312124010225.

It is not an unprimeable number, because it can be changed into a prime (312124010227) 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, 6242480180 + ... + 6242480229.

It is an arithmetic number, because the mean of its divisors is an integer number (64505628785).

Almost surely, 2312124010225 is an apocalyptic number.

It is an amenable number.

312124010225 is a deficient number, since it is larger than the sum of its proper divisors (74909762485).

312124010225 is a wasteful number, since it uses less digits than its factorization.

312124010225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12484960419 (or 12484960414 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 312124010225 its reverse (522010421213), we get a palindrome (834134431438).

The spelling of 312124010225 in words is "three hundred twelve billion, one hundred twenty-four million, ten thousand, two hundred twenty-five".

Divisors: 1 5 25 12484960409 62424802045 312124010225