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8725049 = 74311743
BaseRepresentation
bin100001010010…
…001000111001
3121102021111222
4201102020321
54213200144
6511001425
7134106314
oct41221071
917367458
108725049
114a1a293
122b09275
131a66468
14123197b
15b752ee
hex852239

8725049 has 4 divisors (see below), whose sum is σ = 8737536. Its totient is φ = 8712564.

The previous prime is 8725039. The next prime is 8725051. The reversal of 8725049 is 9405278.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8725049 - 212 = 8720953 is a prime.

It is a super-2 number, since 2×87250492 = 152252960104802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8725039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5129 + ... + 6614.

It is an arithmetic number, because the mean of its divisors is an integer number (2184384).

Almost surely, 28725049 is an apocalyptic number.

It is an amenable number.

8725049 is a deficient number, since it is larger than the sum of its proper divisors (12487).

8725049 is a wasteful number, since it uses less digits than its factorization.

8725049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12486.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 8725049 is about 2953.8193919060. The cubic root of 8725049 is about 205.8682114929.

The spelling of 8725049 in words is "eight million, seven hundred twenty-five thousand, forty-nine".

Divisors: 1 743 11743 8725049