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22981104 = 243353197
BaseRepresentation
bin101011110101…
…0100111110000
31121020120011000
41113222213300
521340343404
62140322000
7366223206
oct127524760
947216130
1022981104
1111a77053
127843300
1349b82b3
1430a3076
15203e339
hex15ea9f0

22981104 has 40 divisors (see below), whose sum is σ = 65965520. Its totient is φ = 7660224.

The previous prime is 22981103. The next prime is 22981109. The reversal of 22981104 is 40118922.

It is a super-2 number, since 2×229811042 = 1056262282117632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22981103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26167 + ... + 27030.

It is an arithmetic number, because the mean of its divisors is an integer number (1649138).

Almost surely, 222981104 is an apocalyptic number.

22981104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22981104 is an abundant number, since it is smaller than the sum of its proper divisors (42984416).

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

22981104 is a wasteful number, since it uses less digits than its factorization.

22981104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53214 (or 53202 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 22981104 is about 4793.8610743325. The cubic root of 22981104 is about 284.3087959076.

The spelling of 22981104 in words is "twenty-two million, nine hundred eighty-one thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 53197 106394 159591 212788 319182 425576 478773 638364 851152 957546 1276728 1436319 1915092 2553456 2872638 3830184 5745276 7660368 11490552 22981104