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344697013 = 477333979
BaseRepresentation
bin10100100010111…
…010100010110101
3220000121102102001
4110202322202311
51201220301023
654112015301
711353606363
oct2442724265
9800542361
10344697013
11167632a71
1297531531
135654a53b
1433aca633
15203dc6ad
hex148ba8b5

344697013 has 4 divisors (see below), whose sum is σ = 352031040. Its totient is φ = 337362988.

The previous prime is 344696999. The next prime is 344697037. The reversal of 344697013 is 310796443.

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 a de Polignac number, because none of the positive numbers 2k-344697013 is a prime.

It is a super-2 number, since 2×3446970132 = 237632061542244338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344697053) 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, 3666943 + ... + 3667036.

It is an arithmetic number, because the mean of its divisors is an integer number (88007760).

Almost surely, 2344697013 is an apocalyptic number.

It is an amenable number.

344697013 is a deficient number, since it is larger than the sum of its proper divisors (7334027).

344697013 is an equidigital number, since it uses as much as digits as its factorization.

344697013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7334026.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 344697013 is about 18566.0176936251. The cubic root of 344697013 is about 701.1525319566.

The spelling of 344697013 in words is "three hundred forty-four million, six hundred ninety-seven thousand, thirteen".

Divisors: 1 47 7333979 344697013