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64242002115 = 32521138917393
BaseRepresentation
bin111011110101000111…
…110010100011000011
320010211010122211200200
4323311013302203003
52023031423031430
645302401020243
74432656002544
oct736507624303
9203733584620
1064242002115
1125276a32035
121054a624683
13609a550b05
1431760004cb
151a0ed7c460
hexef51f28c3

64242002115 has 48 divisors (see below), whose sum is σ = 112174601760. Its totient is φ = 34010403840.

The previous prime is 64242002089. The next prime is 64242002131. The reversal of 64242002115 is 51120024246.

64242002115 is a `hidden beast` number, since 6 + 424 + 20 + 0 + 211 + 5 = 666.

It is not a de Polignac number, because 64242002115 - 27 = 64242001987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3684859 + ... + 3702251.

It is an arithmetic number, because the mean of its divisors is an integer number (2336970870).

Almost surely, 264242002115 is an apocalyptic number.

64242002115 is a deficient number, since it is larger than the sum of its proper divisors (47932599645).

64242002115 is a wasteful number, since it uses less digits than its factorization.

64242002115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18004 (or 18001 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 64242002115 in words is "sixty-four billion, two hundred forty-two million, two thousand, one hundred fifteen".

Divisors: 1 3 5 9 15 45 211 389 633 1055 1167 1899 1945 3165 3501 5835 9495 17393 17505 52179 82079 86965 156537 246237 260895 410395 738711 782685 1231185 3669923 3693555 6765877 11009769 18349615 20297631 33029307 33829385 55048845 60892893 101488155 165146535 304464465 1427600047 4282800141 7138000235 12848400423 21414000705 64242002115