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22980072 = 2333672609
BaseRepresentation
bin101011110101…
…0010111101000
31121020111201210
41113222113220
521340330242
62140313120
7366220203
oct127522750
947214653
1022980072
1111a762a5
1278427a0
1349b799b
1430a293a
15203dd9c
hex15ea5e8

22980072 has 32 divisors (see below), whose sum is σ = 57628800. Its totient is φ = 7636224.

The previous prime is 22980047. The next prime is 22980119. The reversal of 22980072 is 27008922.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7504 + ... + 10112.

It is an arithmetic number, because the mean of its divisors is an integer number (1800900).

Almost surely, 222980072 is an apocalyptic number.

It is an amenable number.

22980072 is an abundant number, since it is smaller than the sum of its proper divisors (34648728).

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

22980072 is a wasteful number, since it uses less digits than its factorization.

22980072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985 (or 2981 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 22980072 is about 4793.7534354616. The cubic root of 22980072 is about 284.3045400768.

Adding to 22980072 its reverse (27008922), we get a palindrome (49988994).

The spelling of 22980072 in words is "twenty-two million, nine hundred eighty thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 367 734 1101 1468 2202 2609 2936 4404 5218 7827 8808 10436 15654 20872 31308 62616 957503 1915006 2872509 3830012 5745018 7660024 11490036 22980072