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52151272 = 2313035003
BaseRepresentation
bin1100011011110…
…0001111101000
310122010120002121
43012330033220
5101322320042
65101441024
71202164345
oct306741750
9118116077
1052151272
1127490028
1215570174
13aa5c654
146cd77cc
1548a2367
hex31bc3e8

52151272 has 16 divisors (see below), whose sum is σ = 97878240. Its totient is φ = 26050416.

The previous prime is 52151237. The next prime is 52151287. The reversal of 52151272 is 27215125.

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, 7923 + ... + 12925.

It is an arithmetic number, because the mean of its divisors is an integer number (6117390).

Almost surely, 252151272 is an apocalyptic number.

It is an amenable number.

52151272 is a deficient number, since it is larger than the sum of its proper divisors (45726968).

52151272 is a wasteful number, since it uses less digits than its factorization.

52151272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312 (or 6308 counting only the distinct ones).

The product of its digits is 1400, while the sum is 25.

The square root of 52151272 is about 7221.5837598134. The cubic root of 52151272 is about 373.6127040144.

Adding to 52151272 its reverse (27215125), we get a palindrome (79366397).

The spelling of 52151272 in words is "fifty-two million, one hundred fifty-one thousand, two hundred seventy-two".

Divisors: 1 2 4 8 1303 2606 5003 5212 10006 10424 20012 40024 6518909 13037818 26075636 52151272