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22470492 = 22311170231
BaseRepresentation
bin101010110110…
…1111101011100
31120021121201110
41111231331130
521223023432
62121342020
7361665432
oct125557534
946247643
1022470492
1111758460
127637910
134869a65
142dacd52
151e8cdcc
hex156df5c

22470492 has 24 divisors (see below), whose sum is σ = 57197952. Its totient is φ = 6809200.

The previous prime is 22470479. The next prime is 22470493. The reversal of 22470492 is 29407422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22470493) 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, 84984 + ... + 85247.

It is an arithmetic number, because the mean of its divisors is an integer number (2383248).

Almost surely, 222470492 is an apocalyptic number.

22470492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22470492 is an abundant number, since it is smaller than the sum of its proper divisors (34727460).

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

22470492 is a wasteful number, since it uses less digits than its factorization.

22470492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170249 (or 170247 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22470492 is about 4740.3050534749. The cubic root of 22470492 is about 282.1873409356.

The spelling of 22470492 in words is "twenty-two million, four hundred seventy thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 170231 340462 510693 680924 1021386 1872541 2042772 3745082 5617623 7490164 11235246 22470492