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52425138 = 238737523
BaseRepresentation
bin1100011111111…
…1000110110010
310122122110202210
43013333012302
5101410101023
65111352550
71204414653
oct307770662
9118573683
1052425138
1127657867
1215682756
13ab271bc
146d6952a
154908593
hex31ff1b2

52425138 has 8 divisors (see below), whose sum is σ = 104850288. Its totient is φ = 17475044.

The previous prime is 52425137. The next prime is 52425151. The reversal of 52425138 is 83152425.

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

52425138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (52425133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4368756 + ... + 4368767.

It is an arithmetic number, because the mean of its divisors is an integer number (13106286).

Almost surely, 252425138 is an apocalyptic number.

52425138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52425138 is a wasteful number, since it uses less digits than its factorization.

52425138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8737528.

The product of its digits is 9600, while the sum is 30.

The square root of 52425138 is about 7240.5205613961. The cubic root of 52425138 is about 374.2655562967.

The spelling of 52425138 in words is "fifty-two million, four hundred twenty-five thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 8737523 17475046 26212569 52425138