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52885997 = 175379743
BaseRepresentation
bin1100100110111…
…1100111101101
310200111212221122
43021233213231
5102014322442
65125310325
71211344403
oct311574755
9120455848
1052885997
112794203a
12158653a5
13ac58bb8
147049473
154999dd2
hex326f9ed

52885997 has 16 divisors (see below), whose sum is σ = 57853440. Its totient is φ = 48152832.

The previous prime is 52885991. The next prime is 52885999. The reversal of 52885997 is 79958825.

It is not a de Polignac number, because 52885997 - 26 = 52885933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52885991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70808 + ... + 71550.

It is an arithmetic number, because the mean of its divisors is an integer number (3615840).

Almost surely, 252885997 is an apocalyptic number.

It is an amenable number.

52885997 is a deficient number, since it is larger than the sum of its proper divisors (4967443).

52885997 is a wasteful number, since it uses less digits than its factorization.

52885997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892.

The product of its digits is 1814400, while the sum is 53.

The square root of 52885997 is about 7272.2759161077. The cubic root of 52885997 is about 375.3590563959.

The spelling of 52885997 in words is "fifty-two million, eight hundred eighty-five thousand, nine hundred ninety-seven".

Divisors: 1 17 53 79 743 901 1343 4187 12631 39379 58697 71179 669443 997849 3110941 52885997