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129930616 = 2310921367
BaseRepresentation
bin1111011111010…
…01010101111000
3100001111011022001
413233221111320
5231230234431
620520510344
73135251314
oct757512570
9301434261
10129930616
1167384882
123761b3b4
1320bc302a
1413382b44
15b617e61
hex7be9578

129930616 has 24 divisors (see below), whose sum is σ = 246055320. Its totient is φ = 64322208.

The previous prime is 129930601. The next prime is 129930617. The reversal of 129930616 is 616039921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129930617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94365 + ... + 95731.

It is an arithmetic number, because the mean of its divisors is an integer number (10252305).

Almost surely, 2129930616 is an apocalyptic number.

It is an amenable number.

129930616 is a deficient number, since it is larger than the sum of its proper divisors (116124704).

129930616 is a wasteful number, since it uses less digits than its factorization.

129930616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 129930616 is about 11398.7111552140. The cubic root of 129930616 is about 506.4895614458.

The spelling of 129930616 in words is "one hundred twenty-nine million, nine hundred thirty thousand, six hundred sixteen".

Divisors: 1 2 4 8 109 218 436 872 1367 2734 5468 10936 11881 23762 47524 95048 149003 298006 596012 1192024 16241327 32482654 64965308 129930616