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215087383134 = 23213191271672281
BaseRepresentation
bin1100100001010000110…
…1010000001001011110
3202120011210212011022100
43020110031100021132
512010444332230014
6242450525025530
721353031406521
oct3102415201136
9676153764270
10215087383134
1183244247488
12358283b52a6
1317389cb2010
14a5a5b70bb8
1558dcc9a009
hex321435025e

215087383134 has 192 divisors, whose sum is σ = 535867637760. Its totient is φ = 61804270080.

The previous prime is 215087383127. The next prime is 215087383171. The reversal of 215087383134 is 431383780512.

215087383134 is a `hidden beast` number, since 2 + 1 + 508 + 7 + 3 + 8 + 3 + 134 = 666.

215087383134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 215087383134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 94294074 + ... + 94296354.

It is an arithmetic number, because the mean of its divisors is an integer number (2790977280).

Almost surely, 2215087383134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215087383134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267933818880).

215087383134 is an abundant number, since it is smaller than the sum of its proper divisors (320780254626).

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

215087383134 is a wasteful number, since it uses less digits than its factorization.

215087383134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615 (or 2612 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 215087383134 in words is "two hundred fifteen billion, eighty-seven million, three hundred eighty-three thousand, one hundred thirty-four".