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1387972092175 = 5255518883687
BaseRepresentation
bin10100001100101001100…
…101010110000100001111
311220200121011100202210021
4110030221211112010033
5140220031323422200
62541343042523011
7202164146060254
oct24145145260417
94820534322707
101387972092175
114956aa0750a9
121a4bb9066467
13a0b67a50756
144b26d00542b
152618722a41a
hex1432995610f

1387972092175 has 6 divisors (see below), whose sum is σ = 1721085394328. Its totient is φ = 1110377673720.

The previous prime is 1387972092109. The next prime is 1387972092191. The reversal of 1387972092175 is 5712902797831.

It is not a de Polignac number, because 1387972092175 - 27 = 1387972092047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27759441819 + ... + 27759441868.

Almost surely, 21387972092175 is an apocalyptic number.

1387972092175 is a deficient number, since it is larger than the sum of its proper divisors (333113302153).

1387972092175 is an equidigital number, since it uses as much as digits as its factorization.

1387972092175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55518883697 (or 55518883692 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 61.

The spelling of 1387972092175 in words is "one trillion, three hundred eighty-seven billion, nine hundred seventy-two million, ninety-two thousand, one hundred seventy-five".

Divisors: 1 5 25 55518883687 277594418435 1387972092175