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52473240 = 23325145759
BaseRepresentation
bin1100100000101…
…0110110011000
310122201220202100
43020022312120
5101413120430
65112403400
71205005131
oct310126630
9118656670
1052473240
112768aa16
12156a6560
13ab43071
146d7cc88
154917960
hex320ad98

52473240 has 48 divisors (see below), whose sum is σ = 170539200. Its totient is φ = 13992768.

The previous prime is 52473227. The next prime is 52473341. The reversal of 52473240 is 4237425.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72520 + ... + 73239.

It is an arithmetic number, because the mean of its divisors is an integer number (3552900).

Almost surely, 252473240 is an apocalyptic number.

It is an amenable number.

52473240 is an abundant number, since it is smaller than the sum of its proper divisors (118065960).

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

52473240 is a wasteful number, since it uses less digits than its factorization.

52473240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145776 (or 145769 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 52473240 is about 7243.8415222864. The cubic root of 52473240 is about 374.3799887946.

The spelling of 52473240 in words is "fifty-two million, four hundred seventy-three thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 145759 291518 437277 583036 728795 874554 1166072 1311831 1457590 1749108 2186385 2623662 2915180 3498216 4372770 5247324 5830360 6559155 8745540 10494648 13118310 17491080 26236620 52473240