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87380835404351 = 412131239887911
BaseRepresentation
bin10011110111100011101111…
…101001111000101000111111
3102110101112012122211001002012
4103313203233221320220333
542423121422330414401
6505502111314321435
724256025362656056
oct2367435751705077
9373345178731065
1087380835404351
112592a005632485
129972ba8b8927b
13399ac9251bc48
14178137da0b39d
15a17e992d28bb
hex4f78efa78a3f

87380835404351 has 4 divisors (see below), whose sum is σ = 89512075292304. Its totient is φ = 85249595516400.

The previous prime is 87380835404323. The next prime is 87380835404383. The reversal of 87380835404351 is 15340453808378.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87380835404351 - 26 = 87380835404287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87380835434351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065619943915 + ... + 1065619943996.

It is an arithmetic number, because the mean of its divisors is an integer number (22378018823076).

Almost surely, 287380835404351 is an apocalyptic number.

87380835404351 is a deficient number, since it is larger than the sum of its proper divisors (2131239887953).

87380835404351 is a wasteful number, since it uses less digits than its factorization.

87380835404351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131239887952.

The product of its (nonzero) digits is 38707200, while the sum is 59.

The spelling of 87380835404351 in words is "eighty-seven trillion, three hundred eighty billion, eight hundred thirty-five million, four hundred four thousand, three hundred fifty-one".

Divisors: 1 41 2131239887911 87380835404351