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1960135249 = 1960999961
BaseRepresentation
bin111010011010101…
…0100101001010001
312001121100012001211
41310311110221101
513003243311444
6522300300121
766400606012
oct16465245121
95047305054
101960135249
11916499696
12468541641
1325312a257
1414847d009
15b713ac34
hex74d54a51

1960135249 has 4 divisors (see below), whose sum is σ = 1960254820. Its totient is φ = 1960015680.

The previous prime is 1960135237. The next prime is 1960135253. The reversal of 1960135249 is 9425310691.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1446433024 + 513702225 = 38032^2 + 22665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1960135249 - 221 = 1958038097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1960135949) 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, 30372 + ... + 69589.

It is an arithmetic number, because the mean of its divisors is an integer number (490063705).

Almost surely, 21960135249 is an apocalyptic number.

It is an amenable number.

1960135249 is a deficient number, since it is larger than the sum of its proper divisors (119571).

1960135249 is an equidigital number, since it uses as much as digits as its factorization.

1960135249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119570.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 1960135249 is about 44273.4146977619. The cubic root of 1960135249 is about 1251.4937340824.

The spelling of 1960135249 in words is "one billion, nine hundred sixty million, one hundred thirty-five thousand, two hundred forty-nine".

Divisors: 1 19609 99961 1960135249