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315145552 = 24192935747
BaseRepresentation
bin10010110010001…
…011110101010000
3210222000001102111
4102302023311100
51121134124202
651134355104
710544456461
oct2262136520
9728001374
10315145552
11151989577
128965ba94
13503a1777
142dbd6d68
151ca016d7
hex12c8bd50

315145552 has 40 divisors (see below), whose sum is σ = 664912800. Its totient is φ = 144127872.

The previous prime is 315145513. The next prime is 315145559. The reversal of 315145552 is 255541513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315145559) 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 7 ways as a sum of consecutive naturals, for example, 9058 + ... + 26689.

It is an arithmetic number, because the mean of its divisors is an integer number (16622820).

Almost surely, 2315145552 is an apocalyptic number.

It is an amenable number.

315145552 is an abundant number, since it is smaller than the sum of its proper divisors (349767248).

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

315145552 is a wasteful number, since it uses less digits than its factorization.

315145552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35803 (or 35797 counting only the distinct ones).

The product of its digits is 15000, while the sum is 31.

The square root of 315145552 is about 17752.3393388026. The cubic root of 315145552 is about 680.5139943168.

The spelling of 315145552 in words is "three hundred fifteen million, one hundred forty-five thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 19 29 38 58 76 116 152 232 304 464 551 1102 2204 4408 8816 35747 71494 142988 285976 571952 679193 1036663 1358386 2073326 2716772 4146652 5433544 8293304 10867088 16586608 19696597 39393194 78786388 157572776 315145552