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426401297 = 729272431
BaseRepresentation
bin11001011010100…
…101111000010001
31002201100102121122
4121122211320101
51333124320142
6110151132025
713365231320
oct3132457021
91081312548
10426401297
111a9768673
12ba974015
136a45657a
14408b80b7
152767b1d2
hex196a5e11

426401297 has 12 divisors (see below), whose sum is σ = 504706176. Its totient is φ = 352878960.

The previous prime is 426401279. The next prime is 426401299. The reversal of 426401297 is 792104624.

It is not a de Polignac number, because 426401297 - 212 = 426397201 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426401299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30329 + ... + 42102.

It is an arithmetic number, because the mean of its divisors is an integer number (42058848).

Almost surely, 2426401297 is an apocalyptic number.

It is an amenable number.

426401297 is a deficient number, since it is larger than the sum of its proper divisors (78304879).

426401297 is an equidigital number, since it uses as much as digits as its factorization.

426401297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72496 (or 72467 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 426401297 is about 20649.4866037875. The cubic root of 426401297 is about 752.6727142250.

The spelling of 426401297 in words is "four hundred twenty-six million, four hundred one thousand, two hundred ninety-seven".

Divisors: 1 7 29 203 841 5887 72431 507017 2100499 14703493 60914471 426401297