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1366830089 = 1747782387
BaseRepresentation
bin101000101111000…
…0010110000001001
310112020221011101122
41101132002300021
510244402030324
6343343525025
745604602242
oct12136026011
93466834348
101366830089
116415a3749
123218b9775
1318a236a01
14cd759cc9
157eee1a5e
hex51782c09

1366830089 has 4 divisors (see below), whose sum is σ = 1367614224. Its totient is φ = 1366045956.

The previous prime is 1366830043. The next prime is 1366830103. The reversal of 1366830089 is 9800386631.

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 a de Polignac number, because none of the positive numbers 2k-1366830089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1366830029) 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, 389447 + ... + 392940.

It is an arithmetic number, because the mean of its divisors is an integer number (341903556).

Almost surely, 21366830089 is an apocalyptic number.

It is an amenable number.

1366830089 is a deficient number, since it is larger than the sum of its proper divisors (784135).

1366830089 is an equidigital number, since it uses as much as digits as its factorization.

1366830089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784134.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1366830089 is about 36970.6652496273. The cubic root of 1366830089 is about 1109.7832785775.

The spelling of 1366830089 in words is "one billion, three hundred sixty-six million, eight hundred thirty thousand, eighty-nine".

Divisors: 1 1747 782387 1366830089