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231420131412 = 22323838478737
BaseRepresentation
bin1101011110000110110…
…1101111100001010100
3211010100001210201221020
43113201231233201110
512242422023201122
6254151332321140
722501543442451
oct3274155574124
9733301721836
10231420131412
118a1656a3a58
1238a261731b0
1318a90990c02
14b2b4d9c828
156046abcc5c
hex35e1b6f854

231420131412 has 24 divisors (see below), whose sum is σ = 563457711936. Its totient is φ = 73786128768.

The previous prime is 231420131377. The next prime is 231420131473. The reversal of 231420131412 is 214131024132.

It is a super-2 number, since 2×2314201314122 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419239093 + ... + 419239644.

It is an arithmetic number, because the mean of its divisors is an integer number (23477404664).

Almost surely, 2231420131412 is an apocalyptic number.

It is an amenable number.

231420131412 is an abundant number, since it is smaller than the sum of its proper divisors (332037580524).

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

231420131412 is a wasteful number, since it uses less digits than its factorization.

231420131412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838478767 (or 838478765 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 231420131412 its reverse (214131024132), we get a palindrome (445551155544).

The spelling of 231420131412 in words is "two hundred thirty-one billion, four hundred twenty million, one hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 838478737 1676957474 2515436211 3353914948 5030872422 10061744844 19285010951 38570021902 57855032853 77140043804 115710065706 231420131412