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25272208 = 2413121501
BaseRepresentation
bin110000001100…
…1111110010000
31202112221221201
41200121332100
522432202313
62301400544
7424544623
oct140317620
952487851
1025272208
11132a1425
128569154
13530b090
1434dbdba
1523430dd
hex1819f90

25272208 has 20 divisors (see below), whose sum is σ = 52731868. Its totient is φ = 11664000.

The previous prime is 25272197. The next prime is 25272227. The reversal of 25272208 is 80227252.

It can be written as a sum of positive squares in 2 ways, for example, as 8363664 + 16908544 = 2892^2 + 4112^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 60543 + ... + 60958.

Almost surely, 225272208 is an apocalyptic number.

It is an amenable number.

25272208 is an abundant number, since it is smaller than the sum of its proper divisors (27459660).

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

25272208 is a wasteful number, since it uses less digits than its factorization.

25272208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121522 (or 121516 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 25272208 is about 5027.1471034773. The cubic root of 25272208 is about 293.4591998868.

The spelling of 25272208 in words is "twenty-five million, two hundred seventy-two thousand, two hundred eight".

Divisors: 1 2 4 8 13 16 26 52 104 208 121501 243002 486004 972008 1579513 1944016 3159026 6318052 12636104 25272208