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22892140 = 2251144607
BaseRepresentation
bin101011101010…
…0111001101100
31121002001010001
41113110321230
521330022030
62134354044
7365402635
oct127247154
947061101
1022892140
1111a16227
1277bb924
13498695b
14307c88c
152022cca
hex15d4e6c

22892140 has 12 divisors (see below), whose sum is σ = 48073536. Its totient is φ = 9156848.

The previous prime is 22892123. The next prime is 22892171. The reversal of 22892140 is 4129822.

It is a junction number, because it is equal to n+sod(n) for n = 22892099 and 22892108.

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, 572284 + ... + 572323.

It is an arithmetic number, because the mean of its divisors is an integer number (4006128).

Almost surely, 222892140 is an apocalyptic number.

22892140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22892140 is an abundant number, since it is smaller than the sum of its proper divisors (25181396).

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

22892140 is a wasteful number, since it uses less digits than its factorization.

22892140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144616 (or 1144614 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 22892140 is about 4784.5731262047. The cubic root of 22892140 is about 283.9414512646.

It can be divided in two parts, 22892 and 140, that added together give a palindrome (23032).

The spelling of 22892140 in words is "twenty-two million, eight hundred ninety-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1144607 2289214 4578428 5723035 11446070 22892140