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346768213 = 1128293457
BaseRepresentation
bin10100101010110…
…100001101010101
3220011111122120011
4110222310031111
51202233040323
654224240221
711410324021
oct2452641525
9804448504
10346768213
11168818100
1298170071
1356ac41bc
14340a9381
152069b20d
hex14ab4355

346768213 has 12 divisors (see below), whose sum is σ = 381728620. Its totient is φ = 314772480.

The previous prime is 346768187. The next prime is 346768223. The reversal of 346768213 is 312867643.

It can be written as a sum of positive squares in 2 ways, for example, as 77053284 + 269714929 = 8778^2 + 16423^2 .

It is not a de Polignac number, because 346768213 - 213 = 346760021 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346768223) 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, 98581 + ... + 102037.

Almost surely, 2346768213 is an apocalyptic number.

It is an amenable number.

346768213 is a deficient number, since it is larger than the sum of its proper divisors (34960407).

346768213 is a wasteful number, since it uses less digits than its factorization.

346768213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308 (or 4297 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 346768213 is about 18621.7134818469. The cubic root of 346768213 is about 702.5540798360.

The spelling of 346768213 in words is "three hundred forty-six million, seven hundred sixty-eight thousand, two hundred thirteen".

Divisors: 1 11 121 829 3457 9119 38027 100309 418297 2865853 31524383 346768213