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315252660 = 22357966509
BaseRepresentation
bin10010110010100…
…101111110110100
3210222012111100110
4102302211332310
51121201041120
651140543020
710545413652
oct2262457664
9728174313
10315252660
11151a51a98
12896b1a70
135040b448
142dc23dd2
151ca232e0
hex12ca5fb4

315252660 has 48 divisors (see below), whose sum is σ = 893894400. Its totient is φ = 83001984.

The previous prime is 315252659. The next prime is 315252677. The reversal of 315252660 is 66252513.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 28515 + ... + 37994.

It is an arithmetic number, because the mean of its divisors is an integer number (18622800).

Almost surely, 2315252660 is an apocalyptic number.

315252660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315252660 is an abundant number, since it is smaller than the sum of its proper divisors (578641740).

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

315252660 is a wasteful number, since it uses less digits than its factorization.

315252660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66600 (or 66598 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 315252660 is about 17755.3558116981. The cubic root of 315252660 is about 680.5910806414.

The spelling of 315252660 in words is "three hundred fifteen million, two hundred fifty-two thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 79 158 237 316 395 474 790 948 1185 1580 2370 4740 66509 133018 199527 266036 332545 399054 665090 798108 997635 1330180 1995270 3990540 5254211 10508422 15762633 21016844 26271055 31525266 52542110 63050532 78813165 105084220 157626330 315252660