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3445988 = 227139467
BaseRepresentation
bin1101001001010011100100
320111002000012
431021103210
51340232423
6201505352
741201420
oct15112344
96432005
103445988
111a44027
1211a2258
13938660
14659b80
15481078
hex3494e4

3445988 has 24 divisors (see below), whose sum is σ = 7422912. Its totient is φ = 1363104.

The previous prime is 3445963. The next prime is 3445999. The reversal of 3445988 is 8895443.

It is a super-2 number, since 2×34459882 = 23749666592288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 4370 + ... + 5097.

It is an arithmetic number, because the mean of its divisors is an integer number (309288).

Almost surely, 23445988 is an apocalyptic number.

It is an amenable number.

3445988 is an abundant number, since it is smaller than the sum of its proper divisors (3976924).

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

3445988 is a wasteful number, since it uses less digits than its factorization.

3445988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9491 (or 9489 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 3445988 is about 1856.3372538416. The cubic root of 3445988 is about 151.0443855893.

The spelling of 3445988 in words is "three million, four hundred forty-five thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 9467 18934 37868 66269 123071 132538 246142 265076 492284 861497 1722994 3445988