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314444221 = 731397727
BaseRepresentation
bin10010101111100…
…000100110111101
3210220200102101021
4102233200212331
51120444203341
651111344141
710535506000
oct2257404675
9726612337
10314444221
1115154a663
1289382051
13501b7490
142da93537
151c9139d1
hex12be09bd

314444221 has 32 divisors (see below), whose sum is σ = 399526400. Its totient is φ = 245887488.

The previous prime is 314444197. The next prime is 314444233. The reversal of 314444221 is 122444413.

It is not a de Polignac number, because 314444221 - 217 = 314313149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314444021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432160 + ... + 432886.

It is an arithmetic number, because the mean of its divisors is an integer number (12485200).

Almost surely, 2314444221 is an apocalyptic number.

It is an amenable number.

314444221 is a deficient number, since it is larger than the sum of its proper divisors (85082179).

314444221 is an equidigital number, since it uses as much as digits as its factorization.

314444221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 844 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 314444221 is about 17732.5751373003. The cubic root of 314444221 is about 680.0088097186.

Adding to 314444221 its reverse (122444413), we get a palindrome (436888634).

The spelling of 314444221 in words is "three hundred fourteen million, four hundred forty-four thousand, two hundred twenty-one".

Divisors: 1 7 13 49 91 97 343 637 679 727 1261 4459 4753 5089 8827 9451 33271 35623 61789 66157 70519 249361 432523 463099 493633 916747 3241693 3455431 6417229 24188017 44920603 314444221