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52147048 = 236518381
BaseRepresentation
bin1100011011101…
…1001101101000
310122010100022011
43012323031220
5101322201143
65101405304
71202146132
oct306731550
9118110264
1052147048
1127487938
1215569834
13aa5a755
146cd6052
1548a0e9d
hex31bb368

52147048 has 8 divisors (see below), whose sum is σ = 97775730. Its totient is φ = 26073520.

The previous prime is 52147033. The next prime is 52147057. The reversal of 52147048 is 84074125.

It can be written as a sum of positive squares in only one way, i.e., 52099524 + 47524 = 7218^2 + 218^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×521470482 = 5438629230228608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3259183 + ... + 3259198.

Almost surely, 252147048 is an apocalyptic number.

It is an amenable number.

52147048 is a deficient number, since it is larger than the sum of its proper divisors (45628682).

52147048 is a wasteful number, since it uses less digits than its factorization.

52147048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518387 (or 6518383 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 52147048 is about 7221.2912972681. The cubic root of 52147048 is about 373.6026168032.

The spelling of 52147048 in words is "fifty-two million, one hundred forty-seven thousand, forty-eight".

Divisors: 1 2 4 8 6518381 13036762 26073524 52147048