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11688482391 = 320691883113
BaseRepresentation
bin10101110001011000…
…00001011001010111
31010011120221102112020
422320230001121113
5142414222414031
65211500424223
7562436314065
oct127054013127
933146842466
1011688482391
114a58930903
122322548073
131143763491
147cc4cb035
15486239096
hex2b8b01657

11688482391 has 8 divisors (see below), whose sum is σ = 15592183920. Its totient is φ = 7788551232.

The previous prime is 11688482363. The next prime is 11688482411. The reversal of 11688482391 is 19328488611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11688482391 - 214 = 11688466007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11688482341) 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, 935350 + ... + 947763.

It is an arithmetic number, because the mean of its divisors is an integer number (1949022990).

Almost surely, 211688482391 is an apocalyptic number.

11688482391 is a deficient number, since it is larger than the sum of its proper divisors (3903701529).

11688482391 is a wasteful number, since it uses less digits than its factorization.

11688482391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885185.

The product of its digits is 663552, while the sum is 51.

The spelling of 11688482391 in words is "eleven billion, six hundred eighty-eight million, four hundred eighty-two thousand, three hundred ninety-one".

Divisors: 1 3 2069 6207 1883113 5649339 3896160797 11688482391