Search a number
-
+
10230120031 = 45722385383
BaseRepresentation
bin10011000011100001…
…10011111001011111
3222101221202221110111
421201300303321133
5131422402320111
64411042550451
7511340404555
oct114160637137
928357687414
1010230120031
11437a6aa65a
121b96068427
13c7058c281
146d0945bd5
153ed1b6a21
hex261c33e5f

10230120031 has 4 divisors (see below), whose sum is σ = 10252505872. Its totient is φ = 10207734192.

The previous prime is 10230120023. The next prime is 10230120037. The reversal of 10230120031 is 13002103201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10230120031 - 23 = 10230120023 is a prime.

It is a super-2 number, since 2×102301200312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10230119993 and 10230120020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10230120037) 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, 11192235 + ... + 11193148.

It is an arithmetic number, because the mean of its divisors is an integer number (2563126468).

Almost surely, 210230120031 is an apocalyptic number.

10230120031 is a deficient number, since it is larger than the sum of its proper divisors (22385841).

10230120031 is an equidigital number, since it uses as much as digits as its factorization.

10230120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22385840.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10230120031 its reverse (13002103201), we get a palindrome (23232223232).

The spelling of 10230120031 in words is "ten billion, two hundred thirty million, one hundred twenty thousand, thirty-one".

Divisors: 1 457 22385383 10230120031