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129480196 = 22106130509
BaseRepresentation
bin1111011011110…
…11011000000100
3100000122021102211
413231323120010
5231121331241
620503113204
73131364166
oct755733004
9300567384
10129480196
11670a742a
1237442804
1320a96001
14132a6936
15b579781
hex7b7b604

129480196 has 12 divisors (see below), whose sum is σ = 226811340. Its totient is φ = 64676960.

The previous prime is 129480163. The next prime is 129480199. The reversal of 129480196 is 691084921.

It can be written as a sum of positive squares in 2 ways, for example, as 28196100 + 101284096 = 5310^2 + 10064^2 .

It is not an unprimeable number, because it can be changed into a prime (129480199) 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, 11011 + ... + 19498.

It is an arithmetic number, because the mean of its divisors is an integer number (18900945).

Almost surely, 2129480196 is an apocalyptic number.

It is an amenable number.

129480196 is a deficient number, since it is larger than the sum of its proper divisors (97331144).

129480196 is a wasteful number, since it uses less digits than its factorization.

129480196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31574 (or 31572 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 129480196 is about 11378.9365056670. The cubic root of 129480196 is about 505.9036149846.

The spelling of 129480196 in words is "one hundred twenty-nine million, four hundred eighty thousand, one hundred ninety-six".

Divisors: 1 2 4 1061 2122 4244 30509 61018 122036 32370049 64740098 129480196