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52099297 = 732572777
BaseRepresentation
bin1100011010111…
…1100011100001
310122000220210121
43012233203201
5101314134142
65100400241
71201556665
oct306574341
9118026717
1052099297
1127454a78
1215546081
13aa41ab3
146cc28a5
154891c67
hex31af8e1

52099297 has 8 divisors (see below), whose sum is σ = 53037576. Its totient is φ = 51167232.

The previous prime is 52099259. The next prime is 52099309. The reversal of 52099297 is 79299025.

It can be written as a sum of positive squares in 4 ways, for example, as 15023376 + 37075921 = 3876^2 + 6089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52099297 - 211 = 52097249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52099897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17373 + ... + 20149.

It is an arithmetic number, because the mean of its divisors is an integer number (6629697).

Almost surely, 252099297 is an apocalyptic number.

It is an amenable number.

52099297 is a deficient number, since it is larger than the sum of its proper divisors (938279).

52099297 is a wasteful number, since it uses less digits than its factorization.

52099297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 52099297 is about 7217.9842754054. The cubic root of 52099297 is about 373.4885461298.

The spelling of 52099297 in words is "fifty-two million, ninety-nine thousand, two hundred ninety-seven".

Divisors: 1 73 257 2777 18761 202721 713689 52099297