Search a number
-
+
21310003014 = 2319186929851
BaseRepresentation
bin10011110110001011…
…001101011101000110
32001000010112022112220
4103312023031131012
5322120330044024
613442323153210
71353040015446
oct236613153506
961003468486
1021310003014
119045a39743
124168815806
132017c05951
14106228c126
1584ac84e79
hex4f62cd746

21310003014 has 16 divisors (see below), whose sum is σ = 44863164480. Its totient is φ = 6729474600.

The previous prime is 21310002991. The next prime is 21310003019. The reversal of 21310003014 is 41030001312.

It is a junction number, because it is equal to n+sod(n) for n = 21310002984 and 21310003002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310003019) 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 7 ways as a sum of consecutive naturals, for example, 93464812 + ... + 93465039.

It is an arithmetic number, because the mean of its divisors is an integer number (2803947780).

Almost surely, 221310003014 is an apocalyptic number.

21310003014 is an abundant number, since it is smaller than the sum of its proper divisors (23553161466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21310003014 is a wasteful number, since it uses less digits than its factorization.

21310003014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186929875.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21310003014 its reverse (41030001312), we get a palindrome (62340004326).

The spelling of 21310003014 in words is "twenty-one billion, three hundred ten million, three thousand, fourteen".

Divisors: 1 2 3 6 19 38 57 114 186929851 373859702 560789553 1121579106 3551667169 7103334338 10655001507 21310003014