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231478444874132 = 22548362310553171
BaseRepresentation
bin110100101000011101000110…
…011110101101100110010100
31010100121010022211012002212222
4310220131012132231212110
5220320020323341433012
62140151421325201512
766520523440054031
oct6450350636554624
91110533284162788
10231478444874132
1167835503556685
1221b660a6a00298
139c214291b6281
14412388b9c2388
151bb6443bad972
hexd287467ad994

231478444874132 has 12 divisors (see below), whose sum is σ = 405087390787296. Its totient is φ = 115739190363480.

The previous prime is 231478444874041. The next prime is 231478444874143.

231478444874132 is nontrivially palindromic in base 10.

231478444874132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16657907 + ... + 27211077.

It is an arithmetic number, because the mean of its divisors is an integer number (33757282565608).

Almost surely, 2231478444874132 is an apocalyptic number.

It is an amenable number.

231478444874132 is a deficient number, since it is larger than the sum of its proper divisors (173608945913164).

231478444874132 is a wasteful number, since it uses less digits than its factorization.

231478444874132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16036798 (or 16036796 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 62.

The spelling of 231478444874132 in words is "two hundred thirty-one trillion, four hundred seventy-eight billion, four hundred forty-four million, eight hundred seventy-four thousand, one hundred thirty-two".

Divisors: 1 2 4 5483623 10553171 10967246 21106342 21934492 42212684 57869611218533 115739222437066 231478444874132