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42691894590240 = 253457470589667
BaseRepresentation
bin10011011010011111110110…
…01101100011101100100000
312121011022020112111210010000
421231033323031203230200
521043431000003341430
6230444215143340000
711664246642402060
oct1155177315435440
9177138215453100
1042691894590240
111266a5925801a5
124955b85151600
131aa8a9cc699cc
14a784279a73a0
154e07aa3d3e60
hex26d3fb363b20

42691894590240 has 240 divisors, whose sum is σ = 172190641879872. Its totient is φ = 9758147314176.

The previous prime is 42691894590229. The next prime is 42691894590263. The reversal of 42691894590240 is 4209549819624.

42691894590240 is a `hidden beast` number, since 4 + 2 + 6 + 9 + 18 + 9 + 4 + 590 + 24 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 235204114 + ... + 235385553.

Almost surely, 242691894590240 is an apocalyptic number.

42691894590240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42691894590240 is an abundant number, since it is smaller than the sum of its proper divisors (129498747289632).

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

42691894590240 is a wasteful number, since it uses less digits than its factorization.

42691894590240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470589701 (or 470589684 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 63.

The spelling of 42691894590240 in words is "forty-two trillion, six hundred ninety-one billion, eight hundred ninety-four million, five hundred ninety thousand, two hundred forty".