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52144945 = 531336419
BaseRepresentation
bin1100011011101…
…0101100110001
310122010020102021
43012322230301
5101322114240
65101351441
71202140036
oct306725461
9118106367
1052144945
11274862a6
1215568581
13aa597c8
146cd538d
1548a054a
hex31bab31

52144945 has 8 divisors (see below), whose sum is σ = 64592640. Its totient is φ = 40370160.

The previous prime is 52144931. The next prime is 52144957. The reversal of 52144945 is 54944125.

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

It is not a de Polignac number, because 52144945 - 25 = 52144913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52144945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168055 + ... + 168364.

It is an arithmetic number, because the mean of its divisors is an integer number (8074080).

Almost surely, 252144945 is an apocalyptic number.

It is an amenable number.

52144945 is a deficient number, since it is larger than the sum of its proper divisors (12447695).

52144945 is a wasteful number, since it uses less digits than its factorization.

52144945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336455.

The product of its digits is 28800, while the sum is 34.

The square root of 52144945 is about 7221.1456847234. The cubic root of 52144945 is about 373.5975944872.

The spelling of 52144945 in words is "fifty-two million, one hundred forty-four thousand, nine hundred forty-five".

Divisors: 1 5 31 155 336419 1682095 10428989 52144945