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52140048 = 2431086251
BaseRepresentation
bin1100011011100…
…1100000010000
310122002222200220
43012321200100
5101321440143
65101313040
71202116542
oct306714020
9118088626
1052140048
1127482654
1215565780
13aa574cc
146cd3692
15489dd83
hex31b9810

52140048 has 20 divisors (see below), whose sum is σ = 134695248. Its totient is φ = 17380000.

The previous prime is 52140043. The next prime is 52140059. The reversal of 52140048 is 84004125.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (52140043) 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, 543078 + ... + 543173.

Almost surely, 252140048 is an apocalyptic number.

It is an amenable number.

52140048 is an abundant number, since it is smaller than the sum of its proper divisors (82555200).

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

52140048 is a wasteful number, since it uses less digits than its factorization.

52140048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086262 (or 1086256 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 52140048 is about 7220.8066031434. The cubic root of 52140048 is about 373.5858991082.

The spelling of 52140048 in words is "fifty-two million, one hundred forty thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 1086251 2172502 3258753 4345004 6517506 8690008 13035012 17380016 26070024 52140048