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1513315252 = 221564724179
BaseRepresentation
bin101101000110011…
…0101101110110100
310220110120101021001
41122030311232310
511044402042002
6410055333044
752333652551
oct13214655664
93813511231
101513315252
11707255169
12362981184
131b16a4b17
14104daba28
158ccc9a87
hex5a335bb4

1513315252 has 12 divisors (see below), whose sum is σ = 2648580480. Its totient is φ = 756577976.

The previous prime is 1513315247. The next prime is 1513315253. The reversal of 1513315252 is 2525133151.

It is a self number, because there is not a number n which added to its sum of digits gives 1513315252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513315253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50499 + ... + 74677.

It is an arithmetic number, because the mean of its divisors is an integer number (220715040).

Almost surely, 21513315252 is an apocalyptic number.

It is an amenable number.

1513315252 is a deficient number, since it is larger than the sum of its proper divisors (1135265228).

1513315252 is a wasteful number, since it uses less digits than its factorization.

1513315252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39830 (or 39828 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 1513315252 is about 38901.3528299467. The cubic root of 1513315252 is about 1148.0914156667.

The spelling of 1513315252 in words is "one billion, five hundred thirteen million, three hundred fifteen thousand, two hundred fifty-two".

Divisors: 1 2 4 15647 24179 31294 48358 62588 96716 378328813 756657626 1513315252