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2986940 = 2251113577
BaseRepresentation
bin1011011001001110111100
312121202022102
423121032330
51231040230
6144004232
734250165
oct13311674
95552272
102986940
111760150
121000678
13807728
1457a76c
153e0045
hex2d93bc

2986940 has 24 divisors (see below), whose sum is σ = 6843312. Its totient is φ = 1086080.

The previous prime is 2986939. The next prime is 2986957. The reversal of 2986940 is 496892.

It is a junction number, because it is equal to n+sod(n) for n = 2986894 and 2986903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6569 + ... + 7008.

It is an arithmetic number, because the mean of its divisors is an integer number (285138).

22986940 is an apocalyptic number.

2986940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2986940 is an abundant number, since it is smaller than the sum of its proper divisors (3856372).

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

2986940 is a wasteful number, since it uses less digits than its factorization.

2986940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13597 (or 13595 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2986940 is about 1728.2765982330. The cubic root of 2986940 is about 144.0153661586.

The spelling of 2986940 in words is "two million, nine hundred eighty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 13577 27154 54308 67885 135770 149347 271540 298694 597388 746735 1493470 2986940