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120530610 = 23251339229
BaseRepresentation
bin1110010111100…
…10011010110010
322101210120220200
413023302122302
5221323434420
615543220030
72662331124
oct713623262
9271716820
10120530610
1162044482
1234447616
131bc815b5
1412017214
15a8acb90
hex72f26b2

120530610 has 24 divisors (see below), whose sum is σ = 313379820. Its totient is φ = 32141472.

The previous prime is 120530593. The next prime is 120530617. The reversal of 120530610 is 16035021.

120530610 is a `hidden beast` number, since 1 + 2 + 0 + 53 + 0 + 610 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 105945849 + 14584761 = 10293^2 + 3819^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120530617) 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, 669525 + ... + 669704.

Almost surely, 2120530610 is an apocalyptic number.

120530610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120530610 is an abundant number, since it is smaller than the sum of its proper divisors (192849210).

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

120530610 is a wasteful number, since it uses less digits than its factorization.

120530610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339242 (or 1339239 counting only the distinct ones).

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

The square root of 120530610 is about 10978.6433588126. The cubic root of 120530610 is about 493.9683441718.

Adding to 120530610 its reverse (16035021), we get a palindrome (136565631).

The spelling of 120530610 in words is "one hundred twenty million, five hundred thirty thousand, six hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1339229 2678458 4017687 6696145 8035374 12053061 13392290 20088435 24106122 40176870 60265305 120530610