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23020221120 = 2635131844569
BaseRepresentation
bin10101011100000111…
…001011001011000000
32012102022121101202020
4111130013023023000
5334121134033440
614324135121440
71443314436201
oct253407131300
965368541666
1023020221120
119843350936
124565513280
13222b31c120
1411854735a8
158eaea63d0
hex55c1cb2c0

23020221120 has 112 divisors (see below), whose sum is σ = 78711491040. Its totient is φ = 5666512896.

The previous prime is 23020221089. The next prime is 23020221137. The reversal of 23020221120 is 2112202032.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23020221120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909805 + ... + 934764.

It is an arithmetic number, because the mean of its divisors is an integer number (702781170).

Almost surely, 223020221120 is an apocalyptic number.

23020221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23020221120 is an abundant number, since it is smaller than the sum of its proper divisors (55691269920).

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

23020221120 is a wasteful number, since it uses less digits than its factorization.

23020221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844602 (or 1844592 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 23020221120 its reverse (2112202032), we get a palindrome (25132423152).

The spelling of 23020221120 in words is "twenty-three billion, twenty million, two hundred twenty-one thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 64 65 78 80 96 104 120 130 156 160 192 195 208 240 260 312 320 390 416 480 520 624 780 832 960 1040 1248 1560 2080 2496 3120 4160 6240 12480 1844569 3689138 5533707 7378276 9222845 11067414 14756552 18445690 22134828 23979397 27668535 29513104 36891380 44269656 47958794 55337070 59026208 71938191 73782760 88539312 95917588 110674140 118052416 119896985 143876382 147565520 177078624 191835176 221348280 239793970 287752764 295131040 354157248 359690955 383670352 442696560 479587940 575505528 590262080 719381910 767340704 885393120 959175880 1151011056 1438763820 1534681408 1770786240 1918351760 2302022112 2877527640 3836703520 4604044224 5755055280 7673407040 11510110560 23020221120