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312797368 = 23132231359
BaseRepresentation
bin10010101001001…
…110100010111000
3210210120202022201
4102221032202320
51120034003433
651012155544
710515506452
oct2251164270
9723522281
10312797368
11150625324
1288908bb4
134ca5ba00
142d7852d2
151c6daa7d
hex12a4e8b8

312797368 has 24 divisors (see below), whose sum is σ = 635083200. Its totient is φ = 144367392.

The previous prime is 312797363. The next prime is 312797377. The reversal of 312797368 is 863797213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312797363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114328 + ... + 117031.

It is an arithmetic number, because the mean of its divisors is an integer number (26461800).

Almost surely, 2312797368 is an apocalyptic number.

It is an amenable number.

312797368 is an abundant number, since it is smaller than the sum of its proper divisors (322285832).

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

312797368 is a wasteful number, since it uses less digits than its factorization.

312797368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231391 (or 231374 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The square root of 312797368 is about 17686.0783668964. The cubic root of 312797368 is about 678.8195841597.

The spelling of 312797368 in words is "three hundred twelve million, seven hundred ninety-seven thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 231359 462718 925436 1850872 3007667 6015334 12030668 24061336 39099671 78199342 156398684 312797368