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130192745 = 529897881
BaseRepresentation
bin1111100001010…
…01010101101001
3100001222110212112
413300221111221
5231312131440
620530252105
73140422454
oct760512551
9301873775
10130192745
1167543811
1237727035
1320c85437
141341049b
15b66a965
hex7c29569

130192745 has 8 divisors (see below), whose sum is σ = 161618760. Its totient is φ = 100562560.

The previous prime is 130192739. The next prime is 130192781. The reversal of 130192745 is 547291031.

It can be written as a sum of positive squares in 4 ways, for example, as 10705984 + 119486761 = 3272^2 + 10931^2 .

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

It is not a de Polignac number, because 130192745 - 24 = 130192729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448796 + ... + 449085.

It is an arithmetic number, because the mean of its divisors is an integer number (20202345).

Almost surely, 2130192745 is an apocalyptic number.

It is an amenable number.

130192745 is a deficient number, since it is larger than the sum of its proper divisors (31426015).

130192745 is an equidigital number, since it uses as much as digits as its factorization.

130192745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897915.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 130192745 is about 11410.2035477024. The cubic root of 130192745 is about 506.8299390603.

The spelling of 130192745 in words is "one hundred thirty million, one hundred ninety-two thousand, seven hundred forty-five".

Divisors: 1 5 29 145 897881 4489405 26038549 130192745