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19960460129 = 40948803081
BaseRepresentation
bin10010100101101111…
…000111001101100001
31220112002010102202002
4102211233013031201
5311334334211004
613100353533345
71304432053211
oct224557071541
956462112662
1019960460129
118513183145
123a50874255
131b6144266c
14d74d52241
157bc55a61e
hex4a5bc7361

19960460129 has 4 divisors (see below), whose sum is σ = 20009263620. Its totient is φ = 19911656640.

The previous prime is 19960460123. The next prime is 19960460147. The reversal of 19960460129 is 92106406991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11507496529 + 8452963600 = 107273^2 + 91940^2 .

It is a cyclic number.

It is not a de Polignac number, because 19960460129 - 220 = 19959411553 is a prime.

It is a super-2 number, since 2×199604601292 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19960460123) 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, 24401132 + ... + 24401949.

It is an arithmetic number, because the mean of its divisors is an integer number (5002315905).

Almost surely, 219960460129 is an apocalyptic number.

It is an amenable number.

19960460129 is a deficient number, since it is larger than the sum of its proper divisors (48803491).

19960460129 is an equidigital number, since it uses as much as digits as its factorization.

19960460129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48803490.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 19960460129 in words is "nineteen billion, nine hundred sixty million, four hundred sixty thousand, one hundred twenty-nine".

Divisors: 1 409 48803081 19960460129