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52189252 = 2217767489
BaseRepresentation
bin1100011100010…
…1100001000100
310122012111012021
43013011201010
5101330024002
65102332524
71202413153
oct307054104
9118174167
1052189252
1127506615
121558a144
13aa73a1b
146d0759a
1548ad737
hex31c5844

52189252 has 12 divisors (see below), whose sum is σ = 96703740. Its totient is φ = 24559616.

The previous prime is 52189237. The next prime is 52189261. The reversal of 52189252 is 25298125.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42850116 + 9339136 = 6546^2 + 3056^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383677 + ... + 383812.

It is an arithmetic number, because the mean of its divisors is an integer number (8058645).

Almost surely, 252189252 is an apocalyptic number.

It is an amenable number.

52189252 is a deficient number, since it is larger than the sum of its proper divisors (44514488).

52189252 is a wasteful number, since it uses less digits than its factorization.

52189252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767510 (or 767508 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 52189252 is about 7224.2128983025. The cubic root of 52189252 is about 373.7033784869.

It can be divided in two parts, 52189 and 252, that added together give a square (52441 = 2292).

The spelling of 52189252 in words is "fifty-two million, one hundred eighty-nine thousand, two hundred fifty-two".

Divisors: 1 2 4 17 34 68 767489 1534978 3069956 13047313 26094626 52189252