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312939484 = 221113547097
BaseRepresentation
bin10010101001110…
…001001111011100
3210210211222021021
4102221301033130
51120103030414
651015213524
710516641004
oct2251611734
9723758237
10312939484
11150712080
12889772a4
134caab5c0
142d7c1004
151c717c24
hex12a713dc

312939484 has 24 divisors (see below), whose sum is σ = 643387248. Its totient is φ = 131303040.

The previous prime is 312939479. The next prime is 312939499. The reversal of 312939484 is 484939213.

It is a super-2 number, since 2×3129394842 = 195862241292372512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312939484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272977 + ... + 274120.

It is an arithmetic number, because the mean of its divisors is an integer number (26807802).

Almost surely, 2312939484 is an apocalyptic number.

It is an amenable number.

312939484 is an abundant number, since it is smaller than the sum of its proper divisors (330447764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312939484 is a wasteful number, since it uses less digits than its factorization.

312939484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547125 (or 547123 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 312939484 is about 17690.0956469998. The cubic root of 312939484 is about 678.9223732999.

The spelling of 312939484 in words is "three hundred twelve million, nine hundred thirty-nine thousand, four hundred eighty-four".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 547097 1094194 2188388 6018067 7112261 12036134 14224522 24072268 28449044 78234871 156469742 312939484