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1938372 = 223161531
BaseRepresentation
bin111011001001111000100
310122110221120
413121033010
5444011442
6105313540
722322142
oct7311704
93573846
101938372
111104367
127958b0
1352b387
14386592
152844ec
hex1d93c4

1938372 has 12 divisors (see below), whose sum is σ = 4522896. Its totient is φ = 646120.

The previous prime is 1938367. The next prime is 1938373. The reversal of 1938372 is 2738391.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1938373) 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 3 ways as a sum of consecutive naturals, for example, 80754 + ... + 80777.

It is an arithmetic number, because the mean of its divisors is an integer number (376908).

21938372 is an apocalyptic number.

1938372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1938372 is an abundant number, since it is smaller than the sum of its proper divisors (2584524).

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

1938372 is a wasteful number, since it uses less digits than its factorization.

1938372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161538 (or 161536 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 1938372 is about 1392.2542871186. The cubic root of 1938372 is about 124.6844735479.

The spelling of 1938372 in words is "one million, nine hundred thirty-eight thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 161531 323062 484593 646124 969186 1938372