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3831980 = 225191599
BaseRepresentation
bin1110100111100010101100
321012200111012
432213202230
51440110410
6214044352
744366645
oct16474254
97180435
103831980
112188029
1213496b8
13a42259
1471a6cc
1550a605
hex3a78ac

3831980 has 12 divisors (see below), whose sum is σ = 8047200. Its totient is φ = 1532784.

The previous prime is 3831937. The next prime is 3832001. The reversal of 3831980 is 891383.

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, 95780 + ... + 95819.

It is an arithmetic number, because the mean of its divisors is an integer number (670600).

Almost surely, 23831980 is an apocalyptic number.

It is an amenable number.

3831980 is an abundant number, since it is smaller than the sum of its proper divisors (4215220).

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

3831980 is a wasteful number, since it uses less digits than its factorization.

3831980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191608 (or 191606 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 3831980 is about 1957.5443800844. The cubic root of 3831980 is about 156.4856114731.

The spelling of 3831980 in words is "three million, eight hundred thirty-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 191599 383198 766396 957995 1915990 3831980