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3125563 = 72227281
BaseRepresentation
bin1011111011000100111011
312212210110121
423323010323
51300004223
6150554111
735365300
oct13730473
95783417
103125563
111845311
121068937
1385585c
145b50a7
1541b15d
hex2fb13b

3125563 has 12 divisors (see below), whose sum is σ = 3664872. Its totient is φ = 2657760.

The previous prime is 3125561. The next prime is 3125587. The reversal of 3125563 is 3655213.

It is a happy number.

It is not a de Polignac number, because 3125563 - 21 = 3125561 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10983 + ... + 11263.

It is an arithmetic number, because the mean of its divisors is an integer number (305406).

Almost surely, 23125563 is an apocalyptic number.

3125563 is a deficient number, since it is larger than the sum of its proper divisors (539309).

3125563 is a wasteful number, since it uses less digits than its factorization.

3125563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 515 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 3125563 is about 1767.9261862419. The cubic root of 3125563 is about 146.2096662340.

The spelling of 3125563 in words is "three million, one hundred twenty-five thousand, five hundred sixty-three".

Divisors: 1 7 49 227 281 1589 1967 11123 13769 63787 446509 3125563