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22122123090 = 2354715689449
BaseRepresentation
bin10100100110100101…
…001100111101010010
32010002201200021212020
4110212211030331102
5330301230414330
614055053512310
71412130641454
oct244645147522
963081607766
1022122123090
1194223a8561
1243547a2696
132117240382
1410dc0902d4
15897203210
hex52694cf52

22122123090 has 32 divisors (see below), whose sum is σ = 54222739200. Its totient is φ = 5773716864.

The previous prime is 22122123083. The next prime is 22122123091. The reversal of 22122123090 is 9032122122.

It is a super-2 number, since 2×221221230902 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22122123090.

It is not an unprimeable number, because it can be changed into a prime (22122123091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7843315 + ... + 7846134.

It is an arithmetic number, because the mean of its divisors is an integer number (1694460600).

Almost surely, 222122123090 is an apocalyptic number.

22122123090 is an abundant number, since it is smaller than the sum of its proper divisors (32100616110).

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

22122123090 is a wasteful number, since it uses less digits than its factorization.

22122123090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15689506.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 22122123090 in words is "twenty-two billion, one hundred twenty-two million, one hundred twenty-three thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 15689449 31378898 47068347 78447245 94136694 156894490 235341735 470683470 737404103 1474808206 2212212309 3687020515 4424424618 7374041030 11061061545 22122123090