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315161392 = 24713233929
BaseRepresentation
bin10010110010001…
…111101100110000
3210222000212011011
4102302033230300
51121140131032
651135000304
710544553610
oct2262175460
9728025134
10315161392
1115199a467
1289669094
13503a8a40
142dbdca40
151ca06247
hex12c8fb30

315161392 has 80 divisors (see below), whose sum is σ = 755576640. Its totient is φ = 124010496.

The previous prime is 315161377. The next prime is 315161393. The reversal of 315161392 is 293161513.

It is a happy number.

315161392 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (315161393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338784 + ... + 339712.

It is an arithmetic number, because the mean of its divisors is an integer number (9444708).

Almost surely, 2315161392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315161392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377788320).

315161392 is an abundant number, since it is smaller than the sum of its proper divisors (440415248).

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

315161392 is a wasteful number, since it uses less digits than its factorization.

315161392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1184 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 315161392 is about 17752.7854715816. The cubic root of 315161392 is about 680.5253955683.

The spelling of 315161392 in words is "three hundred fifteen million, one hundred sixty-one thousand, three hundred ninety-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 233 364 466 728 929 932 1456 1631 1858 1864 3029 3262 3716 3728 6058 6503 6524 7432 12077 12116 13006 13048 14864 21203 24154 24232 26012 26096 42406 48308 48464 52024 84539 84812 96616 104048 169078 169624 193232 216457 338156 339248 432914 676312 865828 1352624 1515199 1731656 2813941 3030398 3463312 5627882 6060796 11255764 12121592 19697587 22511528 24243184 39395174 45023056 78790348 157580696 315161392