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340938913 = 732321879
BaseRepresentation
bin10100010100100…
…101000010100001
3212202112111021011
4110110211002201
51144240021123
653455300521
711306635000
oct2424450241
9782474234
10340938913
111654a64a7
129621a741
1355832b03
14333ccc37
151ede8e0d
hex145250a1

340938913 has 24 divisors (see below), whose sum is σ = 415856000. Its totient is φ = 279378792.

The previous prime is 340938911. The next prime is 340938919. The reversal of 340938913 is 319839043.

It is not a de Polignac number, because 340938913 - 21 = 340938911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340938911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180508 + ... + 182386.

Almost surely, 2340938913 is an apocalyptic number.

It is an amenable number.

340938913 is a deficient number, since it is larger than the sum of its proper divisors (74917087).

340938913 is an equidigital number, since it uses as much as digits as its factorization.

340938913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 340938913 is about 18464.5312152787. The cubic root of 340938913 is about 698.5950821806.

The spelling of 340938913 in words is "three hundred forty million, nine hundred thirty-eight thousand, nine hundred thirteen".

Divisors: 1 7 23 49 161 343 529 1127 1879 3703 7889 13153 25921 43217 92071 181447 302519 644497 993991 2117633 6957937 14823431 48705559 340938913