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390022241 = 771784753
BaseRepresentation
bin10111001111110…
…100010001100001
31000011220011221012
4113033310101201
51244321202431
6102411310305
712444064040
oct2717642141
91004804835
10390022241
11190180534
12aa74b395
1362a59bbb
1439b28557
152439222b
hex173f4461

390022241 has 8 divisors (see below), whose sum is σ = 452018304. Its totient is φ = 329595840.

The previous prime is 390022231. The next prime is 390022271. The reversal of 390022241 is 142220093.

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

It is not a de Polignac number, because 390022241 - 226 = 322913377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (390022231) 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, 391880 + ... + 392873.

It is an arithmetic number, because the mean of its divisors is an integer number (56502288).

Almost surely, 2390022241 is an apocalyptic number.

It is an amenable number.

390022241 is a deficient number, since it is larger than the sum of its proper divisors (61996063).

390022241 is an equidigital number, since it uses as much as digits as its factorization.

390022241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784831.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 390022241 is about 19748.9807585100. The cubic root of 390022241 is about 730.6282456841.

The spelling of 390022241 in words is "three hundred ninety million, twenty-two thousand, two hundred forty-one".

Divisors: 1 7 71 497 784753 5493271 55717463 390022241