Search a number
-
+
10140404031 = 321229916771
BaseRepresentation
bin10010111000110101…
…00100100100111111
3222011200221220020200
421130122210210333
5131231420412111
64354120014543
7506201004102
oct113432444477
928150856220
1010140404031
114333aa26aa
121b70001453
13c57b09694
146c2a70739
153e5394256
hex25c6a493f

10140404031 has 12 divisors (see below), whose sum is σ = 14659184280. Its totient is φ = 6754761360.

The previous prime is 10140404009. The next prime is 10140404081. The reversal of 10140404031 is 13040404101.

It is not a de Polignac number, because 10140404031 - 211 = 10140401983 is a prime.

It is a super-2 number, since 2×101404040312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10140403995 and 10140404013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10140404081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447325 + ... + 469446.

It is an arithmetic number, because the mean of its divisors is an integer number (1221598690).

Almost surely, 210140404031 is an apocalyptic number.

10140404031 is a deficient number, since it is larger than the sum of its proper divisors (4518780249).

10140404031 is a wasteful number, since it uses less digits than its factorization.

10140404031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918006 (or 918003 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10140404031 its reverse (13040404101), we get a palindrome (23180808132).

It can be divided in two parts, 10 and 140404031, that added together give a palindrome (140404041).

The spelling of 10140404031 in words is "ten billion, one hundred forty million, four hundred four thousand, thirty-one".

Divisors: 1 3 9 1229 3687 11061 916771 2750313 8250939 1126711559 3380134677 10140404031