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47052513 = 32311371231
BaseRepresentation
bin1011001101111…
…1011011100001
310021112111220200
42303133123201
544021140023
64400255413
71110640224
oct263373341
9107474820
1047052513
1124618282
1213911569
139995931
14636b5bb
1541e6743
hex2cdf6e1

47052513 has 24 divisors (see below), whose sum is σ = 70726656. Its totient is φ = 30110400.

The previous prime is 47052497. The next prime is 47052517. The reversal of 47052513 is 31525074.

It is a happy number.

It is not a de Polignac number, because 47052513 - 24 = 47052497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47052517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37608 + ... + 38838.

It is an arithmetic number, because the mean of its divisors is an integer number (2946944).

Almost surely, 247052513 is an apocalyptic number.

It is an amenable number.

47052513 is a deficient number, since it is larger than the sum of its proper divisors (23674143).

47052513 is a wasteful number, since it uses less digits than its factorization.

47052513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 47052513 is about 6859.4834353616. The cubic root of 47052513 is about 361.0169624450.

Adding to 47052513 its reverse (31525074), we get a palindrome (78577587).

The spelling of 47052513 in words is "forty-seven million, fifty-two thousand, five hundred thirteen".

Divisors: 1 3 9 31 93 137 279 411 1231 1233 3693 4247 11079 12741 38161 38223 114483 168647 343449 505941 1517823 5228057 15684171 47052513