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1920912 = 24375717
BaseRepresentation
bin111010100111110010000
310121120222220
413110332100
5442432122
6105101040
722220220
oct7247620
93546886
101920912
1110a2234
12787780
13523446
14380080
1527e25c
hex1d4f90

1920912 has 40 divisors (see below), whose sum is σ = 5672256. Its totient is φ = 548736.

The previous prime is 1920911. The next prime is 1920913. The reversal of 1920912 is 2190291.

It is an interprime number because it is at equal distance from previous prime (1920911) and next prime (1920913).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1920911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2523 + ... + 3194.

21920912 is an apocalyptic number.

1920912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1920912 is an abundant number, since it is smaller than the sum of its proper divisors (3751344).

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

1920912 is a wasteful number, since it uses less digits than its factorization.

1920912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5735 (or 5729 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1920912 is about 1385.9696966384. The cubic root of 1920912 is about 124.3089762623.

The spelling of 1920912 in words is "one million, nine hundred twenty thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 5717 11434 17151 22868 34302 40019 45736 68604 80038 91472 120057 137208 160076 240114 274416 320152 480228 640304 960456 1920912