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1297301894 = 2792664421
BaseRepresentation
bin100110101010011…
…0100000110000110
310100102002202122022
41031110310012012
510124102130034
6332421403142
744101612160
oct11524640606
93312082568
101297301894
11606325129
123025694b2
13178a01b75
14c441b930
1578d5ab2e
hex4d534186

1297301894 has 8 divisors (see below), whose sum is σ = 2223946128. Its totient is φ = 555986520.

The previous prime is 1297301891. The next prime is 1297301899. The reversal of 1297301894 is 4981037921.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297301891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46332197 + ... + 46332224.

It is an arithmetic number, because the mean of its divisors is an integer number (277993266).

Almost surely, 21297301894 is an apocalyptic number.

1297301894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1297301894 is a deficient number, since it is larger than the sum of its proper divisors (926644234).

1297301894 is an equidigital number, since it uses as much as digits as its factorization.

1297301894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92664430.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1297301894 is about 36018.0773223669. The cubic root of 1297301894 is about 1090.6373104349.

The spelling of 1297301894 in words is "one billion, two hundred ninety-seven million, three hundred one thousand, eight hundred ninety-four".

Divisors: 1 2 7 14 92664421 185328842 648650947 1297301894