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23332031220 = 22352328359743
BaseRepresentation
bin10101101110101100…
…101000101011110100
32020020001022222210110
4111232230220223310
5340240444444340
614415114223020
71454121664431
oct255654505364
966201288713
1023332031220
119993361433
124631a24a70
13227aac3644
1411b4a3cb88
15918549680
hex56eb28af4

23332031220 has 96 divisors (see below), whose sum is σ = 68412137472. Its totient is φ = 5930229888.

The previous prime is 23332031183. The next prime is 23332031231. The reversal of 23332031220 is 2213023332.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 360669 + ... + 420411.

It is an arithmetic number, because the mean of its divisors is an integer number (712626432).

Almost surely, 223332031220 is an apocalyptic number.

23332031220 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 23332031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34206068736).

23332031220 is an abundant number, since it is smaller than the sum of its proper divisors (45080106252).

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

23332031220 is a wasteful number, since it uses less digits than its factorization.

23332031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60061 (or 60059 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23332031220 its reverse (2213023332), we get a palindrome (25545054552).

The spelling of 23332031220 in words is "twenty-three billion, three hundred thirty-two million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 283 345 460 566 690 849 1132 1380 1415 1698 2830 3396 4245 5660 6509 8490 13018 16980 19527 26036 32545 39054 59743 65090 78108 97635 119486 130180 179229 195270 238972 298715 358458 390540 597430 716916 896145 1194860 1374089 1792290 2748178 3584580 4122267 5496356 6870445 8244534 13740890 16489068 16907269 20611335 27481780 33814538 41222670 50721807 67629076 82445340 84536345 101443614 169072690 202887228 253609035 338145380 388867187 507218070 777734374 1014436140 1166601561 1555468748 1944335935 2333203122 3888671870 4666406244 5833007805 7777343740 11666015610 23332031220