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3129474 = 231992621
BaseRepresentation
bin1011111100000010000010
312212222211110
423330002002
51300120344
6151024150
735412555
oct13740202
95788743
103129474
111848247
12106b056
1385757a
145b669c
1541c3b9
hex2fc082

3129474 has 16 divisors (see below), whose sum is σ = 6292800. Its totient is φ = 1037520.

The previous prime is 3129463. The next prime is 3129487. The reversal of 3129474 is 4749213.

It is a happy number.

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, 117 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (393300).

Almost surely, 23129474 is an apocalyptic number.

3129474 is an abundant number, since it is smaller than the sum of its proper divisors (3163326).

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

3129474 is a wasteful number, since it uses less digits than its factorization.

3129474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825.

The product of its digits is 6048, while the sum is 30.

The square root of 3129474 is about 1769.0319386602. The cubic root of 3129474 is about 146.2706246025.

The spelling of 3129474 in words is "three million, one hundred twenty-nine thousand, four hundred seventy-four".

Divisors: 1 2 3 6 199 398 597 1194 2621 5242 7863 15726 521579 1043158 1564737 3129474