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52969905 = 3255971281
BaseRepresentation
bin1100101000010…
…0000110110001
310200200011001100
43022010012301
5102030014110
65131155013
71212144132
oct312040661
9120604040
1052969905
112799a08a
12158a5a69
13ac88151
14706bc89
1549b4bc0
hex32841b1

52969905 has 48 divisors (see below), whose sum is σ = 95022720. Its totient is φ = 27283200.

The previous prime is 52969871. The next prime is 52969927. The reversal of 52969905 is 50996925.

It is not a de Polignac number, because 52969905 - 211 = 52967857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188365 + ... + 188645.

It is an arithmetic number, because the mean of its divisors is an integer number (1979640).

Almost surely, 252969905 is an apocalyptic number.

It is an amenable number.

52969905 is a deficient number, since it is larger than the sum of its proper divisors (42052815).

52969905 is a wasteful number, since it uses less digits than its factorization.

52969905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 52969905 is about 7278.0426626944. The cubic root of 52969905 is about 375.5574642124.

The spelling of 52969905 in words is "fifty-two million, nine hundred sixty-nine thousand, nine hundred five".

Divisors: 1 3 5 9 15 45 59 71 177 213 281 295 355 531 639 843 885 1065 1405 2529 2655 3195 4189 4215 12567 12645 16579 19951 20945 37701 49737 59853 62835 82895 99755 149211 179559 188505 248685 299265 746055 897795 1177109 3531327 5885545 10593981 17656635 52969905