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129760130 = 2512976013
BaseRepresentation
bin1111011101111…
…11101110000010
3100001011111102202
413232333232002
5231204311010
620513113202
73133641263
oct756775602
9301144382
10129760130
1167278785
1237558802
1320b63556
141333a96a
15b5d26a5
hex7bbfb82

129760130 has 8 divisors (see below), whose sum is σ = 233568252. Its totient is φ = 51904048.

The previous prime is 129760129. The next prime is 129760151. The reversal of 129760130 is 31067921.

It can be written as a sum of positive squares in 2 ways, for example, as 120802081 + 8958049 = 10991^2 + 2993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 129760093 and 129760102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6487997 + ... + 6488016.

Almost surely, 2129760130 is an apocalyptic number.

129760130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129760130 is a deficient number, since it is larger than the sum of its proper divisors (103808122).

129760130 is a wasteful number, since it uses less digits than its factorization.

129760130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12976020.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 129760130 is about 11391.2303988639. The cubic root of 129760130 is about 506.2679375852.

The spelling of 129760130 in words is "one hundred twenty-nine million, seven hundred sixty thousand, one hundred thirty".

Divisors: 1 2 5 10 12976013 25952026 64880065 129760130