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1087083493 = 4099265207
BaseRepresentation
bin100000011001011…
…1001001111100101
32210202112120012121
41000302321033211
54211243132433
6255511545541
735640025426
oct10062711745
92722476177
101087083493
115086a2a11
1226408b2b1
131442aa792
14a453964d
1565683c2d
hex40cb93e5

1087083493 has 4 divisors (see below), whose sum is σ = 1087352800. Its totient is φ = 1086814188.

The previous prime is 1087083463. The next prime is 1087083533. The reversal of 1087083493 is 3943807801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1087083493 - 217 = 1086952421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087083433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128505 + ... + 136702.

It is an arithmetic number, because the mean of its divisors is an integer number (271838200).

Almost surely, 21087083493 is an apocalyptic number.

It is an amenable number.

1087083493 is a deficient number, since it is larger than the sum of its proper divisors (269307).

1087083493 is an equidigital number, since it uses as much as digits as its factorization.

1087083493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269306.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1087083493 is about 32970.9492280705. The cubic root of 1087083493 is about 1028.2237564101.

The spelling of 1087083493 in words is "one billion, eighty-seven million, eighty-three thousand, four hundred ninety-three".

Divisors: 1 4099 265207 1087083493