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60147940 = 2253781281
BaseRepresentation
bin1110010101110…
…0100011100100
311012011211110111
43211130203210
5110344213230
65545102404
71330151266
oct345344344
9135154414
1060147940
1130a52046
1218187a04
13c5cc3c8
147db9b36
15543192a
hex395c8e4

60147940 has 24 divisors (see below), whose sum is σ = 129726072. Its totient is φ = 23408640.

The previous prime is 60147931. The next prime is 60147947. The reversal of 60147940 is 4974106.

60147940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34199104 + 25948836 = 5848^2 + 5094^2 .

It is not an unprimeable number, because it can be changed into a prime (60147947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39901 + ... + 41380.

It is an arithmetic number, because the mean of its divisors is an integer number (5405253).

Almost surely, 260147940 is an apocalyptic number.

It is an amenable number.

60147940 is an abundant number, since it is smaller than the sum of its proper divisors (69578132).

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

60147940 is a wasteful number, since it uses less digits than its factorization.

60147940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81327 (or 81325 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 60147940 is about 7755.5102991357. The cubic root of 60147940 is about 391.8082586503.

The spelling of 60147940 in words is "sixty million, one hundred forty-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 81281 162562 325124 406405 812810 1625620 3007397 6014794 12029588 15036985 30073970 60147940