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354344420 = 22517717221
BaseRepresentation
bin10101000111101…
…101110111100100
3220200202120011102
4111013231313210
51211203010140
655054455232
711531610053
oct2507556744
9820676142
10354344420
11172022231
129a804518
1358547771
14350bc39a
1521195e15
hex151edde4

354344420 has 12 divisors (see below), whose sum is σ = 744123324. Its totient is φ = 141737760.

The previous prime is 354344407. The next prime is 354344443. The reversal of 354344420 is 24443453.

It can be written as a sum of positive squares in 2 ways, for example, as 126877696 + 227466724 = 11264^2 + 15082^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8858591 + ... + 8858630.

It is an arithmetic number, because the mean of its divisors is an integer number (62010277).

Almost surely, 2354344420 is an apocalyptic number.

It is an amenable number.

354344420 is an abundant number, since it is smaller than the sum of its proper divisors (389778904).

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

354344420 is a wasteful number, since it uses less digits than its factorization.

354344420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17717230 (or 17717228 counting only the distinct ones).

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

The square root of 354344420 is about 18824.0383552520. The cubic root of 354344420 is about 707.6337413181.

Adding to 354344420 its reverse (24443453), we get a palindrome (378787873).

The spelling of 354344420 in words is "three hundred fifty-four million, three hundred forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 17717221 35434442 70868884 88586105 177172210 354344420