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130649846 = 265324923
BaseRepresentation
bin1111100100110…
…00111011110110
3100002211200220012
413302120323312
5231421243341
620544140222
73144335225
oct762307366
9302750805
10130649846
1167826188
1237907672
13210b5502
14134cccbc
15b70b0eb
hex7c98ef6

130649846 has 4 divisors (see below), whose sum is σ = 195974772. Its totient is φ = 65324922.

The previous prime is 130649839. The next prime is 130649851. The reversal of 130649846 is 648946031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 648946031 = 5471186373.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32662460 + ... + 32662463.

It is an arithmetic number, because the mean of its divisors is an integer number (48993693).

Almost surely, 2130649846 is an apocalyptic number.

130649846 is a deficient number, since it is larger than the sum of its proper divisors (65324926).

130649846 is an equidigital number, since it uses as much as digits as its factorization.

130649846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65324925.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 130649846 is about 11430.2163584072. The cubic root of 130649846 is about 507.4223987731.

The spelling of 130649846 in words is "one hundred thirty million, six hundred forty-nine thousand, eight hundred forty-six".

Divisors: 1 2 65324923 130649846