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52705615612 = 221321511972621
BaseRepresentation
bin110001000101011111…
…111101111011111100
312001001010220200111111
4301011133331323330
51330420114144422
640113532131404
73544044224626
oct610537757374
9161033820444
1052705615612
1120396a45111
12a26b006b64
134c7c471500
14279dbc5c16
151587188a77
hexc457fdefc

52705615612 has 72 divisors (see below), whose sum is σ = 101085903072. Its totient is φ = 24032736000.

The previous prime is 52705615549. The next prime is 52705615637. The reversal of 52705615612 is 21651650725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20107662 + ... + 20110282.

It is an arithmetic number, because the mean of its divisors is an integer number (1403970876).

Almost surely, 252705615612 is an apocalyptic number.

52705615612 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52705615612 is a deficient number, since it is larger than the sum of its proper divisors (48380287460).

52705615612 is a wasteful number, since it uses less digits than its factorization.

52705615612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999 (or 2984 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 52705615612 in words is "fifty-two billion, seven hundred five million, six hundred fifteen thousand, six hundred twelve".

Divisors: 1 2 4 13 26 52 151 169 197 302 338 394 604 676 788 1963 2561 2621 3926 5122 5242 7852 10244 10484 25519 29747 33293 34073 51038 59494 66586 68146 102076 118988 133172 136292 386711 395771 442949 516337 773422 791542 885898 1032674 1546844 1583084 1771796 2065348 5027243 5145023 6712381 10054486 10290046 13424762 20108972 20580092 26849524 66885299 77966887 87260953 133770598 155933774 174521906 267541196 311867548 349043812 1013569531 2027139062 4054278124 13176403903 26352807806 52705615612