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1930293 = 321391543
BaseRepresentation
bin111010111010000110101
310122001212100
413113100311
5443232133
6105212313
722256451
oct7272065
93561770
101930293
1110a9292
12791099
135277b1
14383661
15281e13
hex1d7435

1930293 has 12 divisors (see below), whose sum is σ = 2810080. Its totient is φ = 1276776.

The previous prime is 1930289. The next prime is 1930297. The reversal of 1930293 is 3920391.

It is an interprime number because it is at equal distance from previous prime (1930289) and next prime (1930297).

It is not a de Polignac number, because 1930293 - 22 = 1930289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480 + ... + 2022.

21930293 is an apocalyptic number.

It is an amenable number.

1930293 is a deficient number, since it is larger than the sum of its proper divisors (879787).

1930293 is a wasteful number, since it uses less digits than its factorization.

1930293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 1930293 is about 1389.3498479505. The cubic root of 1930293 is about 124.5110069138.

The spelling of 1930293 in words is "one million, nine hundred thirty thousand, two hundred ninety-three".

Divisors: 1 3 9 139 417 1251 1543 4629 13887 214477 643431 1930293