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23013022020 = 2235419354887
BaseRepresentation
bin10101011011101011…
…101101100101000100
32012101211001122102220
4111123223231211010
5334112313201040
614323320532340
71443166313442
oct253353554504
965354048386
1023013022020
11983a28406a
1245630210b0
13222999b3c1
14118451bb92
158ea5332d0
hex55baed944

23013022020 has 48 divisors (see below), whose sum is σ = 66008089728. Its totient is φ = 5987127040.

The previous prime is 23013022013. The next prime is 23013022027. The reversal of 23013022020 is 2022031032.

It is an interprime number because it is at equal distance from previous prime (23013022013) and next prime (23013022027).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (23013022027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4674984 + ... + 4679903.

It is an arithmetic number, because the mean of its divisors is an integer number (1375168536).

Almost surely, 223013022020 is an apocalyptic number.

23013022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23013022020 is an abundant number, since it is smaller than the sum of its proper divisors (42995067708).

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

23013022020 is a wasteful number, since it uses less digits than its factorization.

23013022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9354940 (or 9354938 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23013022020 its reverse (2022031032), we get a palindrome (25035053052).

The spelling of 23013022020 in words is "twenty-three billion, thirteen million, twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 9354887 18709774 28064661 37419548 46774435 56129322 93548870 112258644 140323305 187097740 280646610 383550367 561293220 767100734 1150651101 1534201468 1917751835 2301302202 3835503670 4602604404 5753255505 7671007340 11506511010 23013022020