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20125876 = 225031469
BaseRepresentation
bin100110011000…
…1100010110100
31101212111111211
41030301202310
520123012001
61555211204
7333032011
oct114614264
941774454
1020125876
11103a6961
1268a6b04
134228804
14295c708
151b78351
hex13318b4

20125876 has 6 divisors (see below), whose sum is σ = 35220290. Its totient is φ = 10062936.

The previous prime is 20125871. The next prime is 20125879. The reversal of 20125876 is 67852102.

It can be written as a sum of positive squares in only one way, i.e., 19272100 + 853776 = 4390^2 + 924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515731 + ... + 2515738.

Almost surely, 220125876 is an apocalyptic number.

It is an amenable number.

20125876 is a deficient number, since it is larger than the sum of its proper divisors (15094414).

20125876 is a wasteful number, since it uses less digits than its factorization.

20125876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031473 (or 5031471 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 20125876 is about 4486.1872453120. The cubic root of 20125876 is about 272.0100378360.

Adding to 20125876 its reverse (67852102), we get a palindrome (87977978).

The spelling of 20125876 in words is "twenty million, one hundred twenty-five thousand, eight hundred seventy-six".

Divisors: 1 2 4 5031469 10062938 20125876