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232311020 = 22511615551
BaseRepresentation
bin11011101100011…
…00100011101100
3121012010121210212
431312030203230
5433432423040
635015121552
75520416414
oct1566144354
9535117725
10232311020
1110a151787
12659732b8
133918b156
1422bd3644
15155dcd65
hexdd8c8ec

232311020 has 12 divisors (see below), whose sum is σ = 487853184. Its totient is φ = 92924400.

The previous prime is 232311011. The next prime is 232311047. The reversal of 232311020 is 20113232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 232310986 and 232311004.

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, 5807756 + ... + 5807795.

It is an arithmetic number, because the mean of its divisors is an integer number (40654432).

Almost surely, 2232311020 is an apocalyptic number.

232311020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232311020 is an abundant number, since it is smaller than the sum of its proper divisors (255542164).

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

232311020 is a wasteful number, since it uses less digits than its factorization.

232311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11615560 (or 11615558 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 232311020 is about 15241.7525239062. The cubic root of 232311020 is about 614.7378264278.

Adding to 232311020 its reverse (20113232), we get a palindrome (252424252).

The spelling of 232311020 in words is "two hundred thirty-two million, three hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 11615551 23231102 46462204 58077755 116155510 232311020