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23124041220 = 2235770178541
BaseRepresentation
bin10101100010010011…
…001101111000000100
32012200112222000011010
4111202103031320010
5334324223304340
614342324242220
71446015051540
oct254223157004
965615860133
1023124041220
119896a11475
124594240370
13224699c637
14119517aa20
15905162b80
hex5624cde04

23124041220 has 96 divisors (see below), whose sum is σ = 74103434496. Its totient is φ = 5277888000.

The previous prime is 23124041201. The next prime is 23124041261. The reversal of 23124041220 is 2214042132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255150 + ... + 333690.

It is an arithmetic number, because the mean of its divisors is an integer number (771910776).

Almost surely, 223124041220 is an apocalyptic number.

23124041220 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 23124041220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37051717248).

23124041220 is an abundant number, since it is smaller than the sum of its proper divisors (50979393276).

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

23124041220 is a wasteful number, since it uses less digits than its factorization.

23124041220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79261 (or 79259 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 23124041220 its reverse (2214042132), we get a palindrome (25338083352).

The spelling of 23124041220 in words is "twenty-three billion, one hundred twenty-four million, forty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 701 1402 2103 2804 3505 4206 4907 7010 8412 9814 10515 14020 14721 19628 21030 24535 29442 42060 49070 58884 73605 78541 98140 147210 157082 235623 294420 314164 392705 471246 549787 785410 942492 1099574 1178115 1570820 1649361 2199148 2356230 2748935 3298722 4712460 5497870 6597444 8246805 10995740 16493610 32987220 55057241 110114482 165171723 220228964 275286205 330343446 385400687 550572410 660686892 770801374 825858615 1101144820 1156202061 1541602748 1651717230 1927003435 2312404122 3303434460 3854006870 4624808244 5781010305 7708013740 11562020610 23124041220