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10139621707215 = 3257111323292811201
BaseRepresentation
bin1001001110001101000010…
…0011001100110111001111
31022220100010200002212102200
42103203100203030313033
52312111421124112330
633322024454452543
72064364164311220
oct223432043146717
938810120085380
1010139621707215
11325a20a1291a0
121179162964153
13587215539420
14270a90407247
15128b4c83ca60
hex938d08ccdcf

10139621707215 has 768 divisors, whose sum is σ = 25584677314560. Its totient is φ = 3576545280000.

The previous prime is 10139621707213. The next prime is 10139621707247. The reversal of 10139621707215 is 51270712693101.

10139621707215 is a `hidden beast` number, since 1 + 0 + 1 + 3 + 9 + 621 + 7 + 0 + 7 + 2 + 15 = 666.

10139621707215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10139621707215 - 21 = 10139621707213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10139621707213) by changing a digit.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 8442648615 + ... + 8442649815.

It is an arithmetic number, because the mean of its divisors is an integer number (33313381920).

Almost surely, 210139621707215 is an apocalyptic number.

10139621707215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10139621707215 is an abundant number, since it is smaller than the sum of its proper divisors (15445055607345).

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

10139621707215 is a wasteful number, since it uses less digits than its factorization.

10139621707215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The spelling of 10139621707215 in words is "ten trillion, one hundred thirty-nine billion, six hundred twenty-one million, seven hundred seven thousand, two hundred fifteen".