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3028457493 = 321291260647
BaseRepresentation
bin1011010010000010…
…1001100000010101
321211001120120200100
42310200221200111
522200241114433
61220302204313
7135022315065
oct26440514025
97731516610
103028457493
111314537a36
12706283699
133935693a9
1420a2d33a5
1512ad15b13
hexb4829815

3028457493 has 12 divisors (see below), whose sum is σ = 4377843808. Its totient is φ = 2017400040.

The previous prime is 3028457489. The next prime is 3028457513. The reversal of 3028457493 is 3947548203.

3028457493 is a `hidden beast` number, since 30 + 2 + 84 + 57 + 493 = 666.

It is not a de Polignac number, because 3028457493 - 22 = 3028457489 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 (3028457413) 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, 118705 + ... + 141942.

Almost surely, 23028457493 is an apocalyptic number.

It is an amenable number.

3028457493 is a deficient number, since it is larger than the sum of its proper divisors (1349386315).

3028457493 is a wasteful number, since it uses less digits than its factorization.

3028457493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261944 (or 261941 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 3028457493 is about 55031.4227782637. The cubic root of 3028457493 is about 1446.7955382646.

The spelling of 3028457493 in words is "three billion, twenty-eight million, four hundred fifty-seven thousand, four hundred ninety-three".

Divisors: 1 3 9 1291 3873 11619 260647 781941 2345823 336495277 1009485831 3028457493