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230920674831 = 32711541361559
BaseRepresentation
bin1101011100001111110…
…0011101111000001111
3211002001020222201022100
43113003330131320033
512240411143043311
6254030011250143
722453300231020
oct3270374357017
9732036881270
10230920674831
1189a29778920
1238906a49953
1318a11369282
14b268908c47
156017d10a56
hex35c3f1de0f

230920674831 has 48 divisors (see below), whose sum is σ = 415940728320. Its totient is φ = 119934682560.

The previous prime is 230920674823. The next prime is 230920674893. The reversal of 230920674831 is 138476029032.

230920674831 is a `hidden beast` number, since 23 + 0 + 92 + 0 + 67 + 483 + 1 = 666.

It is not a de Polignac number, because 230920674831 - 23 = 230920674823 is a prime.

It is a super-2 number, since 2×2309206748312 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230920674731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3720430 + ... + 3781988.

It is an arithmetic number, because the mean of its divisors is an integer number (8665431840).

Almost surely, 2230920674831 is an apocalyptic number.

230920674831 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

230920674831 is a deficient number, since it is larger than the sum of its proper divisors (185020053489).

230920674831 is a wasteful number, since it uses less digits than its factorization.

230920674831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66996 (or 66993 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 230920674831 in words is "two hundred thirty billion, nine hundred twenty million, six hundred seventy-four thousand, eight hundred thirty-one".

Divisors: 1 3 7 9 11 21 33 63 77 99 231 693 5413 16239 37891 48717 59543 61559 113673 178629 184677 341019 416801 430913 535887 554031 677149 1250403 1292739 2031447 3751209 3878217 4740043 6094341 14220129 42660387 333218867 999656601 2332532069 2998969803 3665407537 6997596207 10996222611 20992788621 25657852759 32988667833 76973558277 230920674831