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349249404 = 22374157731
BaseRepresentation
bin10100110100010…
…001111101111100
3220100011201010010
4110310101331330
51203401440104
654353343220
711440366560
oct2464217574
9810151103
10349249404
1116a162279
1298b67b10
135748266a
14345536a0
15209db489
hex14d11f7c

349249404 has 24 divisors (see below), whose sum is σ = 931331968. Its totient is φ = 99785520.

The previous prime is 349249399. The next prime is 349249423. The reversal of 349249404 is 404942943.

It is a happy number.

It is a super-3 number, since 3×3492494043 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2078782 + ... + 2078949.

Almost surely, 2349249404 is an apocalyptic number.

It is an amenable number.

349249404 is an abundant number, since it is smaller than the sum of its proper divisors (582082564).

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

349249404 is a wasteful number, since it uses less digits than its factorization.

349249404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157745 (or 4157743 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 349249404 is about 18688.2156451599. The cubic root of 349249404 is about 704.2257341501.

The spelling of 349249404 in words is "three hundred forty-nine million, two hundred forty-nine thousand, four hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 4157731 8315462 12473193 16630924 24946386 29104117 49892772 58208234 87312351 116416468 174624702 349249404