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20125024 = 254713381
BaseRepresentation
bin100110011000…
…1010101100000
31101212110100021
41030301111200
520123000044
61555203224
7333026353
oct114612540
941773307
1020125024
11103a6257
1268a6514
1342282ca
14295c29a
151b77e84
hex1331560

20125024 has 24 divisors (see below), whose sum is σ = 40467168. Its totient is φ = 9847680.

The previous prime is 20125019. The next prime is 20125031. The reversal of 20125024 is 42052102.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20124989 and 20125007.

It is a congruent number.

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, 5187 + ... + 8194.

It is an arithmetic number, because the mean of its divisors is an integer number (1686132).

Almost surely, 220125024 is an apocalyptic number.

It is an amenable number.

20125024 is an abundant number, since it is smaller than the sum of its proper divisors (20342144).

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

20125024 is a wasteful number, since it uses less digits than its factorization.

20125024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438 (or 13430 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20125024 is about 4486.0922861662. The cubic root of 20125024 is about 272.0061993973.

Adding to 20125024 its reverse (42052102), we get a palindrome (62177126).

The spelling of 20125024 in words is "twenty million, one hundred twenty-five thousand, twenty-four".

Divisors: 1 2 4 8 16 32 47 94 188 376 752 1504 13381 26762 53524 107048 214096 428192 628907 1257814 2515628 5031256 10062512 20125024