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52038913 = 121342901
BaseRepresentation
bin1100011010000…
…0110100000001
310121220211222011
43012200310001
5101310221123
65055212521
71201215643
oct306406401
9117824864
1052038913
1127413673
1215517141
13aa20474
146ca8893
15487de0d
hex31a0d01

52038913 has 4 divisors (see below), whose sum is σ = 52083028. Its totient is φ = 51994800.

The previous prime is 52038911. The next prime is 52038947. The reversal of 52038913 is 31983025.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18722929 + 33315984 = 4327^2 + 5772^2 .

It is a cyclic number.

It is not a de Polignac number, because 52038913 - 21 = 52038911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52038911) 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, 20238 + ... + 22663.

It is an arithmetic number, because the mean of its divisors is an integer number (13020757).

Almost surely, 252038913 is an apocalyptic number.

It is an amenable number.

52038913 is a deficient number, since it is larger than the sum of its proper divisors (44115).

52038913 is a wasteful number, since it uses less digits than its factorization.

52038913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44114.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 52038913 is about 7213.8001774377. The cubic root of 52038913 is about 373.3441970868.

The spelling of 52038913 in words is "fifty-two million, thirty-eight thousand, nine hundred thirteen".

Divisors: 1 1213 42901 52038913