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348390829 = 2831231063
BaseRepresentation
bin10100110001000…
…000010110101101
3220021120002101001
4110301000112231
51203142001304
654323120301
711430162463
oct2461002655
9807502331
10348390829
11169726206
1298813091
1357241927
14343ac833
15208bbda4
hex14c405ad

348390829 has 4 divisors (see below), whose sum is σ = 349622176. Its totient is φ = 347159484.

The previous prime is 348390781. The next prime is 348390857. The reversal of 348390829 is 928093843.

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.

It is a cyclic number.

It is not a de Polignac number, because 348390829 - 213 = 348382637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348399829) 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, 615249 + ... + 615814.

It is an arithmetic number, because the mean of its divisors is an integer number (87405544).

Almost surely, 2348390829 is an apocalyptic number.

It is an amenable number.

348390829 is a deficient number, since it is larger than the sum of its proper divisors (1231347).

348390829 is a wasteful number, since it uses less digits than its factorization.

348390829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231346.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 348390829 is about 18665.2304834417. The cubic root of 348390829 is about 703.6481843688.

The spelling of 348390829 in words is "three hundred forty-eight million, three hundred ninety thousand, eight hundred twenty-nine".

Divisors: 1 283 1231063 348390829