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310293930 = 23510343131
BaseRepresentation
bin10010011111101…
…011010110101010
3210121212120020210
4102133223112222
51113413401210
650442401550
710455312012
oct2237532652
9717776223
10310293930
1114a175471
1287b002b6
134c39339b
142d2d2c42
151c393e20
hex127eb5aa

310293930 has 16 divisors (see below), whose sum is σ = 744705504. Its totient is φ = 82745040.

The previous prime is 310293913. The next prime is 310293931. The reversal of 310293930 is 39392013.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 10343131 = 310293930 / (3 + 1 + 0 + 2 + 9 + 3 + 9 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (310293931) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 5171536 + ... + 5171595.

It is an arithmetic number, because the mean of its divisors is an integer number (46544094).

Almost surely, 2310293930 is an apocalyptic number.

310293930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

310293930 is an abundant number, since it is smaller than the sum of its proper divisors (434411574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

310293930 is a wasteful number, since it uses less digits than its factorization.

310293930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343141.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 310293930 is about 17615.1619351058. The cubic root of 310293930 is about 677.0037796510.

The spelling of 310293930 in words is "three hundred ten million, two hundred ninety-three thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10343131 20686262 31029393 51715655 62058786 103431310 155146965 310293930