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354443420 = 22517722171
BaseRepresentation
bin10101001000000…
…110000010011100
3220200221120222002
4111020012002130
51211214142140
655100541432
711532501512
oct2510060234
9820846862
10354443420
1117208a651
129a851878
1358580846
14351064b2
15211b5415
hex1520609c

354443420 has 12 divisors (see below), whose sum is σ = 744331224. Its totient is φ = 141777360.

The previous prime is 354443399. The next prime is 354443443. The reversal of 354443420 is 24344453.

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, 8861066 + ... + 8861105.

It is an arithmetic number, because the mean of its divisors is an integer number (62027602).

Almost surely, 2354443420 is an apocalyptic number.

It is an amenable number.

354443420 is an abundant number, since it is smaller than the sum of its proper divisors (389887804).

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

354443420 is a wasteful number, since it uses less digits than its factorization.

354443420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17722180 (or 17722178 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 354443420 is about 18826.6677880075. The cubic root of 354443420 is about 707.6996369206.

Adding to 354443420 its reverse (24344453), we get a palindrome (378787873).

It can be divided in two parts, 3544 and 43420, that added together give a palindrome (46964).

The spelling of 354443420 in words is "three hundred fifty-four million, four hundred forty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 17722171 35444342 70888684 88610855 177221710 354443420