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52819091 = 132378447
BaseRepresentation
bin1100100101111…
…1010010010011
310200101111011122
43021133102103
5102010202331
65124032455
71210645343
oct311372223
9120344148
1052819091
11278a6846
121583272b
13ac34600
14702cd23
15498517b
hex325f493

52819091 has 12 divisors (see below), whose sum is σ = 58747392. Its totient is φ = 47432736.

The previous prime is 52819087. The next prime is 52819099. The reversal of 52819091 is 19091825.

It is not a de Polignac number, because 52819091 - 22 = 52819087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52819099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2030 + ... + 10476.

It is an arithmetic number, because the mean of its divisors is an integer number (4895616).

Almost surely, 252819091 is an apocalyptic number.

52819091 is a deficient number, since it is larger than the sum of its proper divisors (5928301).

52819091 is a wasteful number, since it uses less digits than its factorization.

52819091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8510 (or 8497 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 52819091 is about 7267.6743873126. The cubic root of 52819091 is about 375.2007008616.

The spelling of 52819091 in words is "fifty-two million, eight hundred nineteen thousand, ninety-one".

Divisors: 1 13 37 169 481 6253 8447 109811 312539 1427543 4063007 52819091