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354395369 = 477540327
BaseRepresentation
bin10101000111111…
…010010011101001
3220200212011001102
4111013322103221
51211211122434
655055531145
711532211436
oct2507722351
9820764042
10354395369
11172057539
129a829ab5
1358564a03
14350d2b8d
15211a607e
hex151fa4e9

354395369 has 4 divisors (see below), whose sum is σ = 361935744. Its totient is φ = 346854996.

The previous prime is 354395357. The next prime is 354395381. The reversal of 354395369 is 963593453.

It is a happy number.

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: 963593453 = 1396932327.

It is an interprime number because it is at equal distance from previous prime (354395357) and next prime (354395381).

It is a cyclic number.

It is not a de Polignac number, because 354395369 - 220 = 353346793 is a prime.

It is a super-2 number, since 2×3543953692 = 251192155137292322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 7540327 = 354395369 / (3 + 5 + 4 + 3 + 9 + 5 + 3 + 6 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354395329) 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, 3770117 + ... + 3770210.

It is an arithmetic number, because the mean of its divisors is an integer number (90483936).

Almost surely, 2354395369 is an apocalyptic number.

It is an amenable number.

354395369 is a deficient number, since it is larger than the sum of its proper divisors (7540375).

354395369 is an equidigital number, since it uses as much as digits as its factorization.

354395369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7540374.

The product of its digits is 1312200, while the sum is 47.

The square root of 354395369 is about 18825.3916028326. The cubic root of 354395369 is about 707.6676551240.

The spelling of 354395369 in words is "three hundred fifty-four million, three hundred ninety-five thousand, three hundred sixty-nine".

Divisors: 1 47 7540327 354395369