Search a number
-
+
1110100021 = 61792231033
BaseRepresentation
bin100001000101010…
…1100100000110101
32212100211220221121
41002022230200311
54233141200041
6302053143541
736336460132
oct10212544065
92770756847
101110100021
1151a693638
1226b92abb1
13148ca8c24
14a760b589
15676cd7d1
hex422ac835

1110100021 has 16 divisors (see below), whose sum is σ = 1148815360. Its totient is φ = 1072206720.

The previous prime is 1110099979. The next prime is 1110100031. The reversal of 1110100021 is 1200010111.

It is a cyclic number.

It is not a de Polignac number, because 1110100021 - 29 = 1110099509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110099977 and 1110100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110100031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1074121 + ... + 1075153.

It is an arithmetic number, because the mean of its divisors is an integer number (71800960).

Almost surely, 21110100021 is an apocalyptic number.

It is an amenable number.

1110100021 is a deficient number, since it is larger than the sum of its proper divisors (38715339).

1110100021 is a wasteful number, since it uses less digits than its factorization.

1110100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1110100021 is about 33318.1635298226. The cubic root of 1110100021 is about 1035.4299041011.

Adding to 1110100021 its reverse (1200010111), we get a palindrome (2310110132).

The spelling of 1110100021 in words is "one billion, one hundred ten million, one hundred thousand, twenty-one".

Divisors: 1 61 79 223 1033 4819 13603 17617 63013 81607 230359 1074637 4978027 14051899 18198361 1110100021