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397048441 = 472384067
BaseRepresentation
bin10111101010100…
…111101001111001
31000200010011001211
4113222213221321
51303121022231
6103222043121
712560566426
oct2752475171
91020104054
10397048441
1119413a409
12b0b794a1
136434a00a
143aa36d4d
1524ccdeb1
hex17aa7a79

397048441 has 4 divisors (see below), whose sum is σ = 397137232. Its totient is φ = 396959652.

The previous prime is 397048427. The next prime is 397048507. The reversal of 397048441 is 144840793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144840793 = 473081719.

It is a cyclic number.

It is not a de Polignac number, because 397048441 - 25 = 397048409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 397048394 and 397048403.

It is not an unprimeable number, because it can be changed into a prime (397042441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37311 + ... + 46756.

It is an arithmetic number, because the mean of its divisors is an integer number (99284308).

Almost surely, 2397048441 is an apocalyptic number.

It is an amenable number.

397048441 is a deficient number, since it is larger than the sum of its proper divisors (88791).

397048441 is an equidigital number, since it uses as much as digits as its factorization.

397048441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88790.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 397048441 is about 19926.0744001421. The cubic root of 397048441 is about 734.9895511187.

The spelling of 397048441 in words is "three hundred ninety-seven million, forty-eight thousand, four hundred forty-one".

Divisors: 1 4723 84067 397048441