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351415427 = 1131946857
BaseRepresentation
bin10100111100100…
…010110010000011
3220111020202100012
4110330202302003
51204430243202
654512015135
711464660526
oct2474426203
9814222305
10351415427
11170401680
12998314ab
1357a6052c
1434958bbd
1520cb8152
hex14f22c83

351415427 has 4 divisors (see below), whose sum is σ = 383362296. Its totient is φ = 319468560.

The previous prime is 351415403. The next prime is 351415433. The reversal of 351415427 is 724514153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724514153 = 1165864923.

It is a cyclic number.

It is not a de Polignac number, because 351415427 - 28 = 351415171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351415393 and 351415402.

It is not an unprimeable number, because it can be changed into a prime (351415447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15973418 + ... + 15973439.

It is an arithmetic number, because the mean of its divisors is an integer number (95840574).

Almost surely, 2351415427 is an apocalyptic number.

351415427 is a deficient number, since it is larger than the sum of its proper divisors (31946869).

351415427 is a wasteful number, since it uses less digits than its factorization.

351415427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31946868.

The product of its digits is 16800, while the sum is 32.

The square root of 351415427 is about 18746.0776430698. The cubic root of 351415427 is about 705.6785894503.

The spelling of 351415427 in words is "three hundred fifty-one million, four hundred fifteen thousand, four hundred twenty-seven".

Divisors: 1 11 31946857 351415427