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60531012 = 22329771721
BaseRepresentation
bin1110011011101…
…0000101000100
311012220021221100
43212322011010
5110443443022
610001220100
71333335153
oct346720504
9135807840
1060531012
1131193933
1218331630
13c704889
14807959a
1554aa1ac
hex39ba144

60531012 has 36 divisors (see below), whose sum is σ = 153254556. Its totient is φ = 20144640.

The previous prime is 60530993. The next prime is 60531013. The reversal of 60531012 is 21013506.

It can be written as a sum of positive squares in 2 ways, for example, as 51494976 + 9036036 = 7176^2 + 3006^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (60531013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34312 + ... + 36032.

It is an arithmetic number, because the mean of its divisors is an integer number (4257071).

Almost surely, 260531012 is an apocalyptic number.

It is an amenable number.

60531012 is an abundant number, since it is smaller than the sum of its proper divisors (92723544).

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

60531012 is a wasteful number, since it uses less digits than its factorization.

60531012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 60531012 is about 7780.1678645130. The cubic root of 60531012 is about 392.6382857562.

Adding to 60531012 its reverse (21013506), we get a palindrome (81544518).

The spelling of 60531012 in words is "sixty million, five hundred thirty-one thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 977 1721 1954 2931 3442 3908 5163 5862 6884 8793 10326 11724 15489 17586 20652 30978 35172 61956 1681417 3362834 5044251 6725668 10088502 15132753 20177004 30265506 60531012