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52908989549040 = 243555351351997
BaseRepresentation
bin11000000011110110101011…
…00001110000100111110000
320221100001100110012121100000
430001323111201300213300
523413330102311032130
6304310015415030000
714100356040542412
oct1401732541604760
9227301313177300
1052908989549040
11159496382a1a39
125b2614966b300
13236a3b0ca4821
14d0cb473349b2
1561b43e47e260
hex301ed58709f0

52908989549040 has 240 divisors, whose sum is σ = 187743726319968. Its totient is φ = 13842854857728.

The previous prime is 52908989549033. The next prime is 52908989549107. The reversal of 52908989549040 is 4094598980925.

52908989549040 is a `hidden beast` number, since 5 + 2 + 9 + 0 + 8 + 9 + 8 + 95 + 490 + 40 = 666.

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

It is a super-2 number, since 2×529089895490402 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 52908989549040.

It is a congruent number.

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, 24645679 + ... + 26706318.

Almost surely, 252908989549040 is an apocalyptic number.

It is an amenable number.

52908989549040 is an abundant number, since it is smaller than the sum of its proper divisors (134834736770928).

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

52908989549040 is a wasteful number, since it uses less digits than its factorization.

52908989549040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51352078 (or 51352060 counting only the distinct ones).

The product of its (nonzero) digits is 335923200, while the sum is 72.

The spelling of 52908989549040 in words is "fifty-two trillion, nine hundred eight billion, nine hundred eighty-nine million, five hundred forty-nine thousand, forty".