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1813450084690 = 25181345008469
BaseRepresentation
bin11010011000111010000…
…011000101000101010010
320102100211110021021001111
4122120322003011011102
5214202421210202230
63505030520523534
7245005661246656
oct32307203050522
96370743237044
101813450084690
1163a097329362
122535609205aa
131020139432ba
1463ab2c18a66
153228a76392a
hex1a63a0c5152

1813450084690 has 8 divisors (see below), whose sum is σ = 3264210152460. Its totient is φ = 725380033872.

The previous prime is 1813450084679. The next prime is 1813450084697. The reversal of 1813450084690 is 964800543181.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1808586556569 + 4863528121 = 1344837^2 + 69739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18134500846902 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1813450084697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90672504225 + ... + 90672504244.

Almost surely, 21813450084690 is an apocalyptic number.

1813450084690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1813450084690 is a deficient number, since it is larger than the sum of its proper divisors (1450760067770).

1813450084690 is a wasteful number, since it uses less digits than its factorization.

1813450084690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181345008476.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 1813450084690 in words is "one trillion, eight hundred thirteen billion, four hundred fifty million, eighty-four thousand, six hundred ninety".

Divisors: 1 2 5 10 181345008469 362690016938 906725042345 1813450084690