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312544542 = 23293157943
BaseRepresentation
bin10010101000010…
…000110100011110
3210210002220111210
4102220100310132
51120002411132
651002525250
710513404402
oct2250206436
9723086453
10312544542
11150472382
1288806826
134c9a08cb
142d71b102
151c68abcc
hex12a10d1e

312544542 has 32 divisors (see below), whose sum is σ = 667514880. Its totient is φ = 97342560.

The previous prime is 312544537. The next prime is 312544567. The reversal of 312544542 is 245445213.

312544542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23578 + ... + 34365.

It is an arithmetic number, because the mean of its divisors is an integer number (20859840).

Almost surely, 2312544542 is an apocalyptic number.

312544542 is an abundant number, since it is smaller than the sum of its proper divisors (354970338).

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

312544542 is a wasteful number, since it uses less digits than its factorization.

312544542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58008.

The product of its digits is 19200, while the sum is 30.

The square root of 312544542 is about 17678.9293227842. The cubic root of 312544542 is about 678.6366441075.

Adding to 312544542 its reverse (245445213), we get a palindrome (557989755).

The spelling of 312544542 in words is "three hundred twelve million, five hundred forty-four thousand, five hundred forty-two".

Divisors: 1 2 3 6 29 31 58 62 87 93 174 186 899 1798 2697 5394 57943 115886 173829 347658 1680347 1796233 3360694 3592466 5041041 5388699 10082082 10777398 52090757 104181514 156272271 312544542