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60520 = 2351789
BaseRepresentation
bin1110110001101000
310002000111
432301220
53414040
61144104
7341305
oct166150
9102014
1060520
1141519
122b034
1321715
14180ac
1512dea
hexec68

60520 has 32 divisors (see below), whose sum is σ = 145800. Its totient is φ = 22528.

The previous prime is 60509. The next prime is 60521. The reversal of 60520 is 2506.

It can be divided in two parts, 605 and 20, that multiplied together give a square (12100 = 1102).

60520 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 47524 + 12996 = 218^2 + 114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 60520.

It is not an unprimeable number, because it can be changed into a prime (60521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636 + ... + 724.

260520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72900).

60520 is an abundant number, since it is smaller than the sum of its proper divisors (85280).

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

60520 is a wasteful number, since it uses less digits than its factorization.

60520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 60520 is about 246.0081299470. The cubic root of 60520 is about 39.2614474298.

The spelling of 60520 in words is "sixty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 89 136 170 178 340 356 445 680 712 890 1513 1780 3026 3560 6052 7565 12104 15130 30260 60520