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53630660 = 2252681533
BaseRepresentation
bin1100110010010…
…1011011000100
310201220201102202
43030211123010
5102212140120
65153254032
71220565416
oct314453304
9121821382
1053630660
1128300566
1215b64318
13b159b25
1471a09b6
154a95875
hex33256c4

53630660 has 12 divisors (see below), whose sum is σ = 112624428. Its totient is φ = 21452256.

The previous prime is 53630659. The next prime is 53630671. The reversal of 53630660 is 6603635.

It can be written as a sum of positive squares in 2 ways, for example, as 41783296 + 11847364 = 6464^2 + 3442^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340747 + ... + 1340786.

It is an arithmetic number, because the mean of its divisors is an integer number (9385369).

Almost surely, 253630660 is an apocalyptic number.

It is an amenable number.

53630660 is an abundant number, since it is smaller than the sum of its proper divisors (58993768).

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

53630660 is a wasteful number, since it uses less digits than its factorization.

53630660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681542 (or 2681540 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 53630660 is about 7323.2957061695. The cubic root of 53630660 is about 377.1126034753.

The spelling of 53630660 in words is "fifty-three million, six hundred thirty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2681533 5363066 10726132 13407665 26815330 53630660