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22940087 = 196119793
BaseRepresentation
bin101011110000…
…0100110110111
31121011110212212
41113200212313
521333040322
62135404035
7365662502
oct127404667
947143785
1022940087
1111a49255
12782361b
1349a2721
143092139
1520320e2
hex15e09b7

22940087 has 8 divisors (see below), whose sum is σ = 24544560. Its totient is φ = 21375360.

The previous prime is 22940053. The next prime is 22940107. The reversal of 22940087 is 78004922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22940087 - 218 = 22677943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940387) 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, 8738 + ... + 11055.

It is an arithmetic number, because the mean of its divisors is an integer number (3068070).

Almost surely, 222940087 is an apocalyptic number.

22940087 is a deficient number, since it is larger than the sum of its proper divisors (1604473).

22940087 is a wasteful number, since it uses less digits than its factorization.

22940087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19873.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22940087 is about 4789.5810881537. The cubic root of 22940087 is about 284.1395490540.

The spelling of 22940087 in words is "twenty-two million, nine hundred forty thousand, eighty-seven".

Divisors: 1 19 61 1159 19793 376067 1207373 22940087