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320414137 = 445171987
BaseRepresentation
bin10011000110010…
…010000110111001
3211022220201120021
4103012102012321
51124011223022
651443330441
710640322001
oct2306220671
9738821507
10320414137
1115495797a
128b380a21
13514c7884
14307a9001
151d1e27c7
hex131921b9

320414137 has 4 divisors (see below), whose sum is σ = 320490576. Its totient is φ = 320337700.

The previous prime is 320414131. The next prime is 320414141. The reversal of 320414137 is 731414023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 731414023 = 1017241723.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-320414137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320414131) 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, 31543 + ... + 40444.

It is an arithmetic number, because the mean of its divisors is an integer number (80122644).

Almost surely, 2320414137 is an apocalyptic number.

It is an amenable number.

320414137 is a deficient number, since it is larger than the sum of its proper divisors (76439).

320414137 is an equidigital number, since it uses as much as digits as its factorization.

320414137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76438.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 320414137 is about 17900.1155582862. The cubic root of 320414137 is about 684.2853199337.

The spelling of 320414137 in words is "three hundred twenty million, four hundred fourteen thousand, one hundred thirty-seven".

Divisors: 1 4451 71987 320414137