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120106520 = 2353002663
BaseRepresentation
bin1110010100010…
…10111000011000
322101000001011122
413022022320120
5221221402040
615530144412
72655613532
oct712127030
9271001148
10120106520
1161884896
1234282108
131bb63561
1411d46852
15a8271b5
hex728ae18

120106520 has 16 divisors (see below), whose sum is σ = 270239760. Its totient is φ = 48042592.

The previous prime is 120106517. The next prime is 120106523. The reversal of 120106520 is 25601021.

It is an interprime number because it is at equal distance from previous prime (120106517) and next prime (120106523).

It is a super-2 number, since 2×1201065202 = 28851152293020800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120106523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501292 + ... + 1501371.

It is an arithmetic number, because the mean of its divisors is an integer number (16889985).

Almost surely, 2120106520 is an apocalyptic number.

120106520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120106520 is an abundant number, since it is smaller than the sum of its proper divisors (150133240).

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

120106520 is a wasteful number, since it uses less digits than its factorization.

120106520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002674 (or 3002670 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 120106520 is about 10959.3120222029. The cubic root of 120106520 is about 493.3883166540.

Adding to 120106520 its reverse (25601021), we get a palindrome (145707541).

The spelling of 120106520 in words is "one hundred twenty million, one hundred six thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3002663 6005326 12010652 15013315 24021304 30026630 60053260 120106520