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52415939 = 371917417
BaseRepresentation
bin1100011111110…
…0110111000011
310122122000011002
43013330313003
5101404302224
65111242215
71204346102
oct307746703
9118560132
1052415939
1127650964
121567936b
13ab22c64
146d66039
1549059ae
hex31fcdc3

52415939 has 8 divisors (see below), whose sum is σ = 54121728. Its totient is φ = 50725440.

The previous prime is 52415933. The next prime is 52415941. The reversal of 52415939 is 93951425.

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 52415939 - 28 = 52415683 is a prime.

It is a super-2 number, since 2×524159392 = 5494861322503442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52415933) 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, 3359 + ... + 10775.

It is an arithmetic number, because the mean of its divisors is an integer number (6765216).

Almost surely, 252415939 is an apocalyptic number.

52415939 is a deficient number, since it is larger than the sum of its proper divisors (1705789).

52415939 is a wasteful number, since it uses less digits than its factorization.

52415939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7645.

The product of its digits is 48600, while the sum is 38.

The square root of 52415939 is about 7239.8852891465. The cubic root of 52415939 is about 374.2436643165.

The spelling of 52415939 in words is "fifty-two million, four hundred fifteen thousand, nine hundred thirty-nine".

Divisors: 1 37 191 7067 7417 274429 1416647 52415939