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1230806712 = 233227225919
BaseRepresentation
bin100100101011100…
…1001111010111000
310011202222110101210
41021113021322320
510010041303322
6322044243120
742333453522
oct11127117270
93152873353
101230806712
11581838333
122a42404a0
13167cbc6c5
14b966ca12
15730c370c
hex495c9eb8

1230806712 has 32 divisors (see below), whose sum is σ = 3090585600. Its totient is φ = 408459744.

The previous prime is 1230806711. The next prime is 1230806737. The reversal of 1230806712 is 2176080321.

It is a self number, because there is not a number n which added to its sum of digits gives 1230806712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230806711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107512 + ... + 118407.

It is an arithmetic number, because the mean of its divisors is an integer number (96580800).

Almost surely, 21230806712 is an apocalyptic number.

1230806712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230806712 is an abundant number, since it is smaller than the sum of its proper divisors (1859778888).

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

1230806712 is a wasteful number, since it uses less digits than its factorization.

1230806712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226155 (or 226151 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1230806712 is about 35082.8549579421. The cubic root of 1230806712 is about 1071.6754582096.

The spelling of 1230806712 in words is "one billion, two hundred thirty million, eight hundred six thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 227 454 681 908 1362 1816 2724 5448 225919 451838 677757 903676 1355514 1807352 2711028 5422056 51283613 102567226 153850839 205134452 307701678 410268904 615403356 1230806712