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23011606420 = 225111916133413
BaseRepresentation
bin10101011011100110…
…010011111110010100
32012101201101201121021
4111123212103332110
5334111432401140
614323230330524
71443151266355
oct253346237624
965351351537
1023011606420
1198394a7550
124562659a44
1322295c3c7a
14118426dd2c
158ea353b4a
hex55b993f94

23011606420 has 96 divisors (see below), whose sum is σ = 55542775680. Its totient is φ = 7920207360.

The previous prime is 23011606411. The next prime is 23011606427. The reversal of 23011606420 is 2460611032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011606427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6740634 + ... + 6744046.

It is an arithmetic number, because the mean of its divisors is an integer number (578570580).

Almost surely, 223011606420 is an apocalyptic number.

23011606420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23011606420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27771387840).

23011606420 is an abundant number, since it is smaller than the sum of its proper divisors (32531169260).

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

23011606420 is a wasteful number, since it uses less digits than its factorization.

23011606420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065 (or 5063 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 23011606420 in words is "twenty-three billion, eleven million, six hundred six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 380 418 836 1045 1613 2090 3226 3413 4180 6452 6826 8065 13652 16130 17065 17743 30647 32260 34130 35486 37543 61294 64847 68260 70972 75086 88715 122588 129694 150172 153235 177430 187715 259388 306470 324235 337117 354860 375430 612940 648470 674234 713317 750860 1296940 1348468 1426634 1685585 2853268 3371170 3566585 5505169 6742340 7133170 11010338 14266340 22020676 27525845 55051690 60556859 104598211 110103380 121113718 209196422 242227436 302784295 418392844 522991055 605568590 1045982110 1150580321 1211137180 2091964220 2301160642 4602321284 5752901605 11505803210 23011606420