Search a number
-
+
79996188087 = 332962821781
BaseRepresentation
bin100101010000000100…
…1001111010110110111
321122111001221102001000
41022200021033112313
52302313011004322
6100425535534343
75531244244104
oct1124011172667
9248431842030
1079996188087
1130a20843142
121360668a3b3
13770b3cba4a
143c2c465aab
152132eb93ac
hex12a024f5b7

79996188087 has 8 divisors (see below), whose sum is σ = 118512871280. Its totient is φ = 53330792040.

The previous prime is 79996188073. The next prime is 79996188101. The reversal of 79996188087 is 78088169997.

It is an interprime number because it is at equal distance from previous prime (79996188073) and next prime (79996188101).

It is not a de Polignac number, because 79996188087 - 212 = 79996183991 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 (79996188037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481410864 + ... + 1481410917.

It is an arithmetic number, because the mean of its divisors is an integer number (14814108910).

Almost surely, 279996188087 is an apocalyptic number.

79996188087 is a deficient number, since it is larger than the sum of its proper divisors (38516683193).

79996188087 is a wasteful number, since it uses less digits than its factorization.

79996188087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962821790 (or 2962821784 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 72.

The spelling of 79996188087 in words is "seventy-nine billion, nine hundred ninety-six million, one hundred eighty-eight thousand, eighty-seven".

Divisors: 1 3 9 27 2962821781 8888465343 26665396029 79996188087