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53657057740 = 225111318761209
BaseRepresentation
bin110001111110001101…
…011011100111001100
312010111110012221201211
4301332031123213030
51334342201321430
640352200544204
73606446315446
oct617615334714
9163443187654
1053657057740
1120835012720
12a495782064
1350a1609810
1428502d3496
1515e097772a
hexc7e35b9cc

53657057740 has 48 divisors (see below), whose sum is σ = 132379097760. Its totient is φ = 18010759680.

The previous prime is 53657057681. The next prime is 53657057767. The reversal of 53657057740 is 4775075635.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 9377745 + ... + 9383464.

It is an arithmetic number, because the mean of its divisors is an integer number (2757897870).

Almost surely, 253657057740 is an apocalyptic number.

It is an amenable number.

53657057740 is an abundant number, since it is smaller than the sum of its proper divisors (78722040020).

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

53657057740 is a wasteful number, since it uses less digits than its factorization.

53657057740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18761242 (or 18761240 counting only the distinct ones).

The product of its (nonzero) digits is 3087000, while the sum is 49.

The spelling of 53657057740 in words is "fifty-three billion, six hundred fifty-seven million, fifty-seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 18761209 37522418 75044836 93806045 187612090 206373299 243895717 375224180 412746598 487791434 825493196 975582868 1031866495 1219478585 2063732990 2438957170 2682852887 4127465980 4877914340 5365705774 10731411548 13414264435 26828528870 53657057740