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390333242 = 21333314507
BaseRepresentation
bin10111010001000…
…000001100111010
31000012110222112202
4113101000030322
51244411130432
6102422110202
712446530535
oct2721001472
91005428482
10390333242
11190373162
12aa87b362
1362b38620
1439ba9a1c
1524404462
hex1744033a

390333242 has 16 divisors (see below), whose sum is σ = 630867552. Its totient is φ = 180059760.

The previous prime is 390333241. The next prime is 390333271. The reversal of 390333242 is 242333093.

It is not an unprimeable number, because it can be changed into a prime (390333241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84353 + ... + 88859.

It is an arithmetic number, because the mean of its divisors is an integer number (39429222).

Almost surely, 2390333242 is an apocalyptic number.

390333242 is a deficient number, since it is larger than the sum of its proper divisors (240534310).

390333242 is a wasteful number, since it uses less digits than its factorization.

390333242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7853.

The product of its (nonzero) digits is 11664, while the sum is 29.

The square root of 390333242 is about 19756.8530388825. The cubic root of 390333242 is about 730.8223933691.

The spelling of 390333242 in words is "three hundred ninety million, three hundred thirty-three thousand, two hundred forty-two".

Divisors: 1 2 13 26 3331 4507 6662 9014 43303 58591 86606 117182 15012817 30025634 195166621 390333242