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231420464184 = 233721331488303
BaseRepresentation
bin1101011110000110111…
…1000000110000111000
3211010100002102122102010
43113201233000300320
512242422114323214
6254151343405520
722501546326600
oct3274157006070
9733302378363
10231420464184
118a165900a78
1238a262b38a0
1318a90a79510
14b2b5047c00
156046b36659
hex35e1bc0c38

231420464184 has 192 divisors, whose sum is σ = 748159856640. Its totient is φ = 59065009920.

The previous prime is 231420464183. The next prime is 231420464201. The reversal of 231420464184 is 481464024132.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231420464183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 229777 + ... + 718079.

It is an arithmetic number, because the mean of its divisors is an integer number (3896665920).

Almost surely, 2231420464184 is an apocalyptic number.

231420464184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231420464184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374079928320).

231420464184 is an abundant number, since it is smaller than the sum of its proper divisors (516739392456).

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

231420464184 is a wasteful number, since it uses less digits than its factorization.

231420464184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488370 (or 488359 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The spelling of 231420464184 in words is "two hundred thirty-one billion, four hundred twenty million, four hundred sixty-four thousand, one hundred eighty-four".