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344400942 = 232319912541
BaseRepresentation
bin10100100001110…
…010010000101110
3220000001101021110
4110201302100232
51201131312232
654101412450
711351234244
oct2441622056
9800041243
10344400942
11167450586
129740a126
1356475852
1433a50794
152037eacc
hex1487242e

344400942 has 32 divisors (see below), whose sum is σ = 722419200. Its totient is φ = 109248480.

The previous prime is 344400929. The next prime is 344400949. The reversal of 344400942 is 249004443.

It is a super-2 number, since 2×3444009422 = 237224017700974728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344400949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21192 + ... + 33732.

It is an arithmetic number, because the mean of its divisors is an integer number (22575600).

Almost surely, 2344400942 is an apocalyptic number.

344400942 is an abundant number, since it is smaller than the sum of its proper divisors (378018258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344400942 is a wasteful number, since it uses less digits than its factorization.

344400942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12768.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 344400942 is about 18558.0425153086. The cubic root of 344400942 is about 700.9517272042.

The spelling of 344400942 in words is "three hundred forty-four million, four hundred thousand, nine hundred forty-two".

Divisors: 1 2 3 6 23 46 69 138 199 398 597 1194 4577 9154 12541 13731 25082 27462 37623 75246 288443 576886 865329 1730658 2495659 4991318 7486977 14973954 57400157 114800314 172200471 344400942