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1938069 = 32730763
BaseRepresentation
bin111011001001010010101
310122110112100
413121022111
5444004234
6105312313
722321230
oct7311225
93573470
101938069
111104111
12795699
1352b1b3
14386417
15284399
hex1d9295

1938069 has 12 divisors (see below), whose sum is σ = 3199456. Its totient is φ = 1107432.

The previous prime is 1938067. The next prime is 1938071. The reversal of 1938069 is 9608391.

It is an interprime number because it is at equal distance from previous prime (1938067) and next prime (1938071).

It is not a de Polignac number, because 1938069 - 21 = 1938067 is a prime.

It is a super-2 number, since 2×19380692 = 7512222897522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938067) 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 11 ways as a sum of consecutive naturals, for example, 15319 + ... + 15444.

21938069 is an apocalyptic number.

It is an amenable number.

1938069 is a deficient number, since it is larger than the sum of its proper divisors (1261387).

1938069 is a wasteful number, since it uses less digits than its factorization.

1938069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30776 (or 30773 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1938069 is about 1392.1454665372. The cubic root of 1938069 is about 124.6779764524.

The spelling of 1938069 in words is "one million, nine hundred thirty-eight thousand, sixty-nine".

Divisors: 1 3 7 9 21 63 30763 92289 215341 276867 646023 1938069