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52573905 = 3251497841
BaseRepresentation
bin1100100010001…
…1011011010001
310122221000211200
43020203123101
5101424331110
65114501413
71205604456
oct310433321
9118830750
1052573905
112774960a
1215734869
13ab79b27
146da782d
1549376c0
hex32236d1

52573905 has 24 divisors (see below), whose sum is σ = 91751400. Its totient is φ = 27847680.

The previous prime is 52573891. The next prime is 52573921. The reversal of 52573905 is 50937525.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 52533504 = 201^2 + 7248^2 .

It is not a de Polignac number, because 52573905 - 24 = 52573889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52573905.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2785 + ... + 10625.

It is an arithmetic number, because the mean of its divisors is an integer number (3822975).

Almost surely, 252573905 is an apocalyptic number.

It is an amenable number.

52573905 is a deficient number, since it is larger than the sum of its proper divisors (39177495).

52573905 is a wasteful number, since it uses less digits than its factorization.

52573905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8001 (or 7998 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

The square root of 52573905 is about 7250.7865090623. The cubic root of 52573905 is about 374.6192401894.

The spelling of 52573905 in words is "fifty-two million, five hundred seventy-three thousand, nine hundred five".

Divisors: 1 3 5 9 15 45 149 447 745 1341 2235 6705 7841 23523 39205 70569 117615 352845 1168309 3504927 5841545 10514781 17524635 52573905