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2139358992960 = 263574310769193
BaseRepresentation
bin11111001000011011101…
…110111001101001000000
321120112001121101012100210
4133020123232321221000
5240022401400233320
64314450303514120
7310364211254130
oct37103356715100
97515047335323
102139358992960
1175532a418942
122a6756bb8940
131269823a0757
147578ccdcac0
153a9b27d10e0
hex1f21bbb9a40

2139358992960 has 448 divisors, whose sum is σ = 8017700308992. Its totient is φ = 473153716224.

The previous prime is 2139358992943. The next prime is 2139358993027. The reversal of 2139358992960 is 692998539312.

It is a tau number, because it is divible by the number of its divisors (448).

It is a junction number, because it is equal to n+sod(n) for n = 2139358992891 and 2139358992900.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30884124 + ... + 30953316.

Almost surely, 22139358992960 is an apocalyptic number.

2139358992960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139358992960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4008850154496).

2139358992960 is an abundant number, since it is smaller than the sum of its proper divisors (5878341316032).

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

2139358992960 is a wasteful number, since it uses less digits than its factorization.

2139358992960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69370 (or 69360 counting only the distinct ones).

The product of its (nonzero) digits is 56687040, while the sum is 66.

The spelling of 2139358992960 in words is "two trillion, one hundred thirty-nine billion, three hundred fifty-eight million, nine hundred ninety-two thousand, nine hundred sixty".