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52144276 = 2217375353
BaseRepresentation
bin1100011011101…
…0100010010100
310122010012111111
43012322202110
5101322104101
65101344404
71202135062
oct306724224
9118105444
1052144276
1127485848
1215568104
13aa59402
146cd5032
1548a0251
hex31ba894

52144276 has 12 divisors (see below), whose sum is σ = 91781172. Its totient is φ = 25921088.

The previous prime is 52144273. The next prime is 52144277. The reversal of 52144276 is 67244125.

It can be written as a sum of positive squares in 2 ways, for example, as 47941776 + 4202500 = 6924^2 + 2050^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52144271) 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, 36985 + ... + 38368.

It is an arithmetic number, because the mean of its divisors is an integer number (7648431).

Almost surely, 252144276 is an apocalyptic number.

It is an amenable number.

52144276 is a deficient number, since it is larger than the sum of its proper divisors (39636896).

52144276 is a wasteful number, since it uses less digits than its factorization.

52144276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75530 (or 75528 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 52144276 is about 7221.0993622855. The cubic root of 52144276 is about 373.5959967749.

The spelling of 52144276 in words is "fifty-two million, one hundred forty-four thousand, two hundred seventy-six".

Divisors: 1 2 4 173 346 692 75353 150706 301412 13036069 26072138 52144276