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312113434 = 21091431713
BaseRepresentation
bin10010100110100…
…111100100011010
3210202022000010211
4102212213210122
51114400112214
650545401334
710506630463
oct2246474432
9722260124
10312113434
111501a8496
128863924a
134c87c609
142d647d6a
151c6030c4
hex129a791a

312113434 has 8 divisors (see below), whose sum is σ = 472465620. Its totient is φ = 154624896.

The previous prime is 312113419. The next prime is 312113453. The reversal of 312113434 is 434311213.

It can be written as a sum of positive squares in 2 ways, for example, as 260919409 + 51194025 = 16153^2 + 7155^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715639 + ... + 716074.

Almost surely, 2312113434 is an apocalyptic number.

312113434 is a deficient number, since it is larger than the sum of its proper divisors (160352186).

312113434 is a wasteful number, since it uses less digits than its factorization.

312113434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431824.

The product of its digits is 864, while the sum is 22.

The square root of 312113434 is about 17666.7324086827. The cubic root of 312113434 is about 678.3244749424.

Adding to 312113434 its reverse (434311213), we get a palindrome (746424647).

The spelling of 312113434 in words is "three hundred twelve million, one hundred thirteen thousand, four hundred thirty-four".

Divisors: 1 2 109 218 1431713 2863426 156056717 312113434