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1814011293 = 3604670431
BaseRepresentation
bin110110000011111…
…1001110110011101
311200102101022200110
41230013321312131
512203341330133
6500000320233
762644561443
oct15407716635
94612338613
101814011293
11850a64596
12427613079
1322ba87683
14132cc2b93
15a93c4c63
hex6c1f9d9d

1814011293 has 4 divisors (see below), whose sum is σ = 2418681728. Its totient is φ = 1209340860.

The previous prime is 1814011291. The next prime is 1814011327. The reversal of 1814011293 is 3921104181.

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 not a de Polignac number, because 1814011293 - 21 = 1814011291 is a prime.

It is a super-2 number, since 2×18140112932 = 6581273942263063698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1814011293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814011291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302335213 + ... + 302335218.

It is an arithmetic number, because the mean of its divisors is an integer number (604670432).

Almost surely, 21814011293 is an apocalyptic number.

It is an amenable number.

1814011293 is a deficient number, since it is larger than the sum of its proper divisors (604670435).

1814011293 is an equidigital number, since it uses as much as digits as its factorization.

1814011293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604670434.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1814011293 is about 42591.2114525990. The cubic root of 1814011293 is about 1219.5885231083.

The spelling of 1814011293 in words is "one billion, eight hundred fourteen million, eleven thousand, two hundred ninety-three".

Divisors: 1 3 604670431 1814011293