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230013012020 = 225112345457117
BaseRepresentation
bin1101011000110111011…
…0000000100000110100
3210222201000001200000012
43112031312000200310
512232031312341040
6253355545035352
722421636225531
oct3261566004064
9728630050005
10230013012020
1189603392370
12386b2a85b58
13188c82bba9c
14b1c0155d88
155eb32bd865
hex358dd80834

230013012020 has 48 divisors (see below), whose sum is σ = 549849299328. Its totient is φ = 80004524160.

The previous prime is 230013012013. The next prime is 230013012023. The reversal of 230013012020 is 20210310032.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 230013011986 and 230013012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230013012023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22723499 + ... + 22733618.

It is an arithmetic number, because the mean of its divisors is an integer number (11455193736).

Almost surely, 2230013012020 is an apocalyptic number.

230013012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230013012020 is an abundant number, since it is smaller than the sum of its proper divisors (319836287308).

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

230013012020 is a wasteful number, since it uses less digits than its factorization.

230013012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45457160 (or 45457158 counting only the distinct ones).

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

Adding to 230013012020 its reverse (20210310032), we get a palindrome (250223322052).

The spelling of 230013012020 in words is "two hundred thirty billion, thirteen million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 23 44 46 55 92 110 115 220 230 253 460 506 1012 1265 2530 5060 45457117 90914234 181828468 227285585 454571170 500028287 909142340 1000056574 1045513691 2000113148 2091027382 2500141435 4182054764 5000282870 5227568455 10000565740 10455136910 11500650601 20910273820 23001301202 46002602404 57503253005 115006506010 230013012020