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22480231572 = 2232624450877
BaseRepresentation
bin10100111011111011…
…010001110010010100
32011000200112002100100
4110323323101302110
5332014414402242
614154405214100
71424036546511
oct247373216224
964020462310
1022480231572
119596560787
124434701330
1321734a5196
14113386c308
158b888e54c
hex53bed1c94

22480231572 has 18 divisors (see below), whose sum is σ = 56825029898. Its totient is φ = 7493410512.

The previous prime is 22480231567. The next prime is 22480231573. The reversal of 22480231572 is 27513208422.

22480231572 is a `hidden beast` number, since 2 + 2 + 4 + 80 + 2 + 3 + 1 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14833778436 + 7646453136 = 121794^2 + 87444^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 624450877 = 22480231572 / (2 + 2 + 4 + 8 + 0 + 2 + 3 + 1 + 5 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22480231573) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 312225403 + ... + 312225474.

Almost surely, 222480231572 is an apocalyptic number.

It is an amenable number.

22480231572 is an abundant number, since it is smaller than the sum of its proper divisors (34344798326).

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

22480231572 is a wasteful number, since it uses less digits than its factorization.

22480231572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624450887 (or 624450882 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

Adding to 22480231572 its reverse (27513208422), we get a palindrome (49993439994).

The spelling of 22480231572 in words is "twenty-two billion, four hundred eighty million, two hundred thirty-one thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 624450877 1248901754 1873352631 2497803508 3746705262 5620057893 7493410524 11240115786 22480231572