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23322220220 = 2251397924751
BaseRepresentation
bin10101101110000111…
…001101011010111100
32020012100212112122002
4111232013031122330
5340230442021340
614414124041432
71453642413065
oct255607153274
966170775562
1023322220220
119988870272
12462a693278
132278a69b10
1411b360756c
1591775c715
hex56e1cd6bc

23322220220 has 48 divisors (see below), whose sum is σ = 53287909248. Its totient is φ = 8522496000.

The previous prime is 23322220193. The next prime is 23322220231. The reversal of 23322220220 is 2202222332.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23322220192 and 23322220201.

It is a congruent number.

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, 437156 + ... + 487595.

It is an arithmetic number, because the mean of its divisors is an integer number (1110164776).

Almost surely, 223322220220 is an apocalyptic number.

23322220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23322220220 is an abundant number, since it is smaller than the sum of its proper divisors (29965689028).

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

23322220220 is a wasteful number, since it uses less digits than its factorization.

23322220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924870 (or 924868 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 23322220220 its reverse (2202222332), we get a palindrome (25524442552).

The spelling of 23322220220 in words is "twenty-three billion, three hundred twenty-two million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 97 130 194 260 388 485 970 1261 1940 2522 5044 6305 12610 25220 924751 1849502 3699004 4623755 9247510 12021763 18495020 24043526 48087052 60108815 89700847 120217630 179401694 240435260 358803388 448504235 897008470 1166111011 1794016940 2332222022 4664444044 5830555055 11661110110 23322220220