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230213022520 = 23513442717351
BaseRepresentation
bin1101011001100111000…
…0111111001100111000
3211000012221102020211111
43112121300333030320
512232434013210040
6253431452010104
722426615255525
oct3263160771470
9730187366744
10230213022520
11896a62821a8
1238749a60934
131892a87aab0
14b1dc93c14c
155ec5b2adea
hex3599c3f338

230213022520 has 32 divisors (see below), whose sum is σ = 557823863520. Its totient is φ = 85001731200.

The previous prime is 230213022467. The next prime is 230213022541. The reversal of 230213022520 is 25220312032.

It is a junction number, because it is equal to n+sod(n) for n = 230213022491 and 230213022500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221358156 + ... + 221359195.

It is an arithmetic number, because the mean of its divisors is an integer number (17431995735).

Almost surely, 2230213022520 is an apocalyptic number.

230213022520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230213022520 is an abundant number, since it is smaller than the sum of its proper divisors (327610841000).

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

230213022520 is a wasteful number, since it uses less digits than its factorization.

230213022520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442717375 (or 442717371 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 230213022520 its reverse (25220312032), we get a palindrome (255433334552).

The spelling of 230213022520 in words is "two hundred thirty billion, two hundred thirteen million, twenty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 442717351 885434702 1770869404 2213586755 3541738808 4427173510 5755325563 8854347020 11510651126 17708694040 23021302252 28776627815 46042604504 57553255630 115106511260 230213022520