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5061012561 = 321151121339
BaseRepresentation
bin1001011011010100…
…01110110001010001
3111001201012002001200
410231222032301101
540331104400221
62154111021413
7236262616443
oct45552166121
914051162050
105061012561
11216789a710
12b92b0a869
136286a16b7
14360224493
151e94a9426
hex12da8ec51

5061012561 has 12 divisors (see below), whose sum is σ = 7974929040. Its totient is φ = 3067280280.

The previous prime is 5061012479. The next prime is 5061012587. The reversal of 5061012561 is 1652101605.

It is a happy number.

5061012561 is a `hidden beast` number, since 506 + 101 + 2 + 56 + 1 = 666.

It is not a de Polignac number, because 5061012561 - 214 = 5060996177 is a prime.

It is a super-2 number, since 2×50610125612 = 51227696285199557442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5061012361) 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, 25560571 + ... + 25560768.

It is an arithmetic number, because the mean of its divisors is an integer number (664577420).

Almost surely, 25061012561 is an apocalyptic number.

It is an amenable number.

5061012561 is a deficient number, since it is larger than the sum of its proper divisors (2913916479).

5061012561 is a wasteful number, since it uses less digits than its factorization.

5061012561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51121356 (or 51121353 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 5061012561 is about 71140.7939300652. The cubic root of 5061012561 is about 1716.9031801861.

The spelling of 5061012561 in words is "five billion, sixty-one million, twelve thousand, five hundred sixty-one".

Divisors: 1 3 9 11 33 99 51121339 153364017 460092051 562334729 1687004187 5061012561