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52418091 = 31110115727
BaseRepresentation
bin1100011111110…
…1011000101011
310122122010002210
43013331120223
5101404334331
65111300203
71204355265
oct307753053
9118563083
1052418091
1127652540
121567a663
13ab23c2b
146d66b35
154906446
hex31fd62b

52418091 has 16 divisors (see below), whose sum is σ = 77004288. Its totient is φ = 31452000.

The previous prime is 52418083. The next prime is 52418099. The reversal of 52418091 is 19081425.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52418083) and next prime (52418099).

It is not a de Polignac number, because 52418091 - 23 = 52418083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52418099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4531 + ... + 11196.

It is an arithmetic number, because the mean of its divisors is an integer number (4812768).

Almost surely, 252418091 is an apocalyptic number.

52418091 is a deficient number, since it is larger than the sum of its proper divisors (24586197).

52418091 is a wasteful number, since it uses less digits than its factorization.

52418091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15842.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 52418091 is about 7240.0339087604. The cubic root of 52418091 is about 374.2487859224.

The spelling of 52418091 in words is "fifty-two million, four hundred eighteen thousand, ninety-one".

Divisors: 1 3 11 33 101 303 1111 3333 15727 47181 172997 518991 1588427 4765281 17472697 52418091