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49742858872 = 23715710335477
BaseRepresentation
bin101110010100111001…
…111100101001111000
311202101122222001022101
4232110321330221320
51303333132440442
634503534033144
73410450216110
oct562471745170
9152348861271
1049742858872
111a106602123
1297829487b4
1348c96c9b05
14259c516040
151461eeecb7
hexb94e7ca78

49742858872 has 64 divisors (see below), whose sum is σ = 107394217920. Its totient is φ = 21158212608.

The previous prime is 49742858861. The next prime is 49742858887. The reversal of 49742858872 is 27885824794.

It is a super-2 number, since 2×497428588722 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 9079398 + ... + 9084874.

It is an arithmetic number, because the mean of its divisors is an integer number (1678034655).

Almost surely, 249742858872 is an apocalyptic number.

It is an amenable number.

49742858872 is an abundant number, since it is smaller than the sum of its proper divisors (57651359048).

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

49742858872 is a wasteful number, since it uses less digits than its factorization.

49742858872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680 (or 6676 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 64.

The spelling of 49742858872 in words is "forty-nine billion, seven hundred forty-two million, eight hundred fifty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 157 314 628 1033 1099 1256 2066 2198 4132 4396 5477 7231 8264 8792 10954 14462 21908 28924 38339 43816 57848 76678 153356 162181 306712 324362 648724 859889 1135267 1297448 1719778 2270534 3439556 4541068 5657741 6019223 6879112 9082136 11315482 12038446 22630964 24076892 39604187 45261928 48153784 79208374 158416748 316833496 888265337 1776530674 3553061348 6217857359 7106122696 12435714718 24871429436 49742858872