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20025132 = 2233153831
BaseRepresentation
bin100110001100…
…0111100101100
31101200101022120
41030120330230
520111301012
61553112540
7332132211
oct114307454
941611276
1020025132
11103381a6
126858750
1341c19ba
142933b08
151b5858c
hex1318f2c

20025132 has 24 divisors (see below), whose sum is σ = 48233472. Its totient is φ = 6459600.

The previous prime is 20025127. The next prime is 20025139. The reversal of 20025132 is 23152002.

It is not an unprimeable number, because it can be changed into a prime (20025139) 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, 26544 + ... + 27287.

It is an arithmetic number, because the mean of its divisors is an integer number (2009728).

Almost surely, 220025132 is an apocalyptic number.

It is an amenable number.

20025132 is an abundant number, since it is smaller than the sum of its proper divisors (28208340).

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

20025132 is a wasteful number, since it uses less digits than its factorization.

20025132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53869 (or 53867 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20025132 is about 4474.9449158621. The cubic root of 20025132 is about 271.5554119743. Note that the first 3 decimals are identical.

Adding to 20025132 its reverse (23152002), we get a palindrome (43177134).

The spelling of 20025132 in words is "twenty million, twenty-five thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 53831 107662 161493 215324 322986 645972 1668761 3337522 5006283 6675044 10012566 20025132