Search a number
-
+
18763290001 = 196277157327
BaseRepresentation
bin10001011110011000…
…010001010110010001
31210102122102220001201
4101132120101112101
5301411400240001
612341510231201
71232654222251
oct213630212621
953378386051
1018763290001
117a5942a545
123777955501
131a003cc281
14c9dd5b961
1574c3cd501
hex45e611591

18763290001 has 8 divisors (see below), whose sum is σ = 19754103680. Its totient is φ = 17772803568.

The previous prime is 18763289999. The next prime is 18763290017. The reversal of 18763290001 is 10009236781.

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

It is a cyclic number.

It is not a de Polignac number, because 18763290001 - 21 = 18763289999 is a prime.

It is a super-2 number, since 2×187632900012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18763290701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40600 + ... + 197926.

It is an arithmetic number, because the mean of its divisors is an integer number (2469262960).

Almost surely, 218763290001 is an apocalyptic number.

It is an amenable number.

18763290001 is a deficient number, since it is larger than the sum of its proper divisors (990813679).

18763290001 is a wasteful number, since it uses less digits than its factorization.

18763290001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163623.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 18763290001 in words is "eighteen billion, seven hundred sixty-three million, two hundred ninety thousand, one".

Divisors: 1 19 6277 119263 157327 2989213 987541579 18763290001