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1968020 = 225195179
BaseRepresentation
bin111100000011110010100
310200222121122
413200132110
51000434040
6110103112
722504445
oct7403624
93628548
101968020
11112466a
127aaa98
1353ba12
143932cc
1528d1b5
hex1e0794

1968020 has 24 divisors (see below), whose sum is σ = 4351200. Its totient is φ = 745632.

The previous prime is 1968019. The next prime is 1968023. The reversal of 1968020 is 208691.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2210 + ... + 2969.

It is an arithmetic number, because the mean of its divisors is an integer number (181300).

21968020 is an apocalyptic number.

1968020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1968020 is an abundant number, since it is smaller than the sum of its proper divisors (2383180).

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

1968020 is a wasteful number, since it uses less digits than its factorization.

1968020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207 (or 5205 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1968020 is about 1402.8613616463. The cubic root of 1968020 is about 125.3169556337.

The spelling of 1968020 in words is "one million, nine hundred sixty-eight thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 5179 10358 20716 25895 51790 98401 103580 196802 393604 492005 984010 1968020