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231020446320234 = 23212834469240013
BaseRepresentation
bin110100100001110010100011…
…101000111000011001101010
31010021222100011010002221001100
4310201302203220320121222
5220240014333224221414
62135201154454502230
766442451010432114
oct6441624350703152
91107870133087040
10231020446320234
116767924829130a
1221ab1388064976
139bba1999803ac
144109640ac03b4
151ba958a60d609
hexd21ca3a3866a

231020446320234 has 12 divisors (see below), whose sum is σ = 500544300360546. Its totient is φ = 77006815440072.

The previous prime is 231020446320197. The next prime is 231020446320281. The reversal of 231020446320234 is 432023644020132.

231020446320234 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 2 + 0 + 446 + 3 + 202 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 221816789055225 + 9203657265009 = 14893515^2 + 3033753^2 .

It is a super-2 number, since 2×2310204463202342 (a number of 30 digits) contains 22 as substring.

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, 6417234619989 + ... + 6417234620024.

Almost surely, 2231020446320234 is an apocalyptic number.

231020446320234 is an abundant number, since it is smaller than the sum of its proper divisors (269523854040312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231020446320234 is a wasteful number, since it uses less digits than its factorization.

231020446320234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12834469240021 (or 12834469240018 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

The spelling of 231020446320234 in words is "two hundred thirty-one trillion, twenty billion, four hundred forty-six million, three hundred twenty thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 12834469240013 25668938480026 38503407720039 77006815440078 115510223160117 231020446320234