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25290841 = 4721072
BaseRepresentation
bin110000001111…
…0100001011001
31202120220111211
41200132201121
522433301331
62302023121
7424653142
oct140364131
952526454
1025290841
1113304424
128577aa1
1353166c4
143504ac9
1523488b1
hex181e859

25290841 has 9 divisors (see below), whose sum is σ = 26084149. Its totient is φ = 24521404.

The previous prime is 25290833. The next prime is 25290877. The reversal of 25290841 is 14809252.

The square root of 25290841 is 5029.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 25290841 - 23 = 25290833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25290821) 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 in 8 ways as a sum of consecutive naturals, for example, 236310 + ... + 236416.

Almost surely, 225290841 is an apocalyptic number.

25290841 is the 5029-th square number.

25290841 is the 2515-th centered octagonal number.

It is an amenable number.

25290841 is a deficient number, since it is larger than the sum of its proper divisors (793308).

25290841 is an frugal number, since it uses more digits than its factorization.

25290841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The cubic root of 25290841 is about 293.5313038884.

The spelling of 25290841 in words is "twenty-five million, two hundred ninety thousand, eight hundred forty-one".

Divisors: 1 47 107 2209 5029 11449 236363 538103 25290841