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22495 = 511409
BaseRepresentation
bin101011111011111
31010212011
411133133
51204440
6252051
7122404
oct53737
933764
1022495
11159a0
1211027
13a315
1482ab
1569ea
hex57df

22495 has 8 divisors (see below), whose sum is σ = 29520. Its totient is φ = 16320.

The previous prime is 22483. The next prime is 22501. The reversal of 22495 is 59422.

It is a happy number.

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

It is not a de Polignac number, because 22495 - 27 = 22367 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

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, 150 + ... + 259.

It is an arithmetic number, because the mean of its divisors is an integer number (3690).

222495 is an apocalyptic number.

22495 is a deficient number, since it is larger than the sum of its proper divisors (7025).

22495 is a wasteful number, since it uses less digits than its factorization.

22495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its digits is 720, while the sum is 22.

The square root of 22495 is about 149.9833324073. The cubic root of 22495 is about 28.2289895203.

The spelling of 22495 in words is "twenty-two thousand, four hundred ninety-five".

Divisors: 1 5 11 55 409 2045 4499 22495