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22089948 = 2231840829
BaseRepresentation
bin101010001000…
…1000011011100
31112120021201020
41110101003130
521123334243
62105244140
7355522116
oct124210334
945507636
1022089948
1111518561
127493650
13476579a
142d103b6
151e15283
hex15110dc

22089948 has 12 divisors (see below), whose sum is σ = 51543240. Its totient is φ = 7363312.

The previous prime is 22089937. The next prime is 22089971. The reversal of 22089948 is 84998022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920403 + ... + 920426.

It is an arithmetic number, because the mean of its divisors is an integer number (4295270).

Almost surely, 222089948 is an apocalyptic number.

It is an amenable number.

22089948 is an abundant number, since it is smaller than the sum of its proper divisors (29453292).

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

22089948 is a wasteful number, since it uses less digits than its factorization.

22089948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840836 (or 1840834 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 22089948 is about 4699.9944680819. The cubic root of 22089948 is about 280.5852893116.

The spelling of 22089948 in words is "twenty-two million, eighty-nine thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 1840829 3681658 5522487 7363316 11044974 22089948