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351140444 = 22194620269
BaseRepresentation
bin10100111011011…
…111101001011100
3220110201210010122
4110323133221130
51204342443234
654502054112
711462434034
oct2473375134
9813653118
10351140444
11170234016
129971a338
1357995315
14348c68c4
1520c6192e
hex14edfa5c

351140444 has 12 divisors (see below), whose sum is σ = 646837800. Its totient is φ = 166329648.

The previous prime is 351140437. The next prime is 351140477. The reversal of 351140444 is 444041153.

It is a happy number.

351140444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3511404442 = 246599222825034272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310059 + ... + 2310210.

It is an arithmetic number, because the mean of its divisors is an integer number (53903150).

Almost surely, 2351140444 is an apocalyptic number.

It is an amenable number.

351140444 is a deficient number, since it is larger than the sum of its proper divisors (295697356).

351140444 is a wasteful number, since it uses less digits than its factorization.

351140444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620292 (or 4620290 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 351140444 is about 18738.7417934076. The cubic root of 351140444 is about 705.4944766336.

Adding to 351140444 its reverse (444041153), we get a palindrome (795181597).

The spelling of 351140444 in words is "three hundred fifty-one million, one hundred forty thousand, four hundred forty-four".

Divisors: 1 2 4 19 38 76 4620269 9240538 18481076 87785111 175570222 351140444