Search a number
-
+
61928925 = 3521077717
BaseRepresentation
bin1110110000111…
…1010111011101
311022112022111220
43230033113131
5111323211200
610051203553
71351246542
oct354172735
9138468456
1061928925
1131a59133
12188a65b9
13caa3c46
148320bc9
1556844a0
hex3b0f5dd

61928925 has 24 divisors (see below), whose sum is σ = 103359456. Its totient is φ = 32715840.

The previous prime is 61928921. The next prime is 61928927. The reversal of 61928925 is 52982916.

It is not a de Polignac number, because 61928925 - 22 = 61928921 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61928921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4167 + ... + 11883.

It is an arithmetic number, because the mean of its divisors is an integer number (4306644).

Almost surely, 261928925 is an apocalyptic number.

It is an amenable number.

61928925 is a deficient number, since it is larger than the sum of its proper divisors (41430531).

61928925 is a wasteful number, since it uses less digits than its factorization.

61928925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7837 (or 7832 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 61928925 is about 7869.4933127870. The cubic root of 61928925 is about 395.6378627375.

The spelling of 61928925 in words is "sixty-one million, nine hundred twenty-eight thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 75 107 321 535 1605 2675 7717 8025 23151 38585 115755 192925 578775 825719 2477157 4128595 12385785 20642975 61928925