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22102020013 = 166313290451
BaseRepresentation
bin10100100101011000…
…100000111110101101
32010001022211221121211
4110211120200332231
5330231104120023
614053054554421
71411465033063
oct244530407655
963038757554
1022102020013
119412017847
124349b08a11
132113022068
1410d953a033
15895581a0d
hex525620fad

22102020013 has 4 divisors (see below), whose sum is σ = 22115312128. Its totient is φ = 22088727900.

The previous prime is 22102020001. The next prime is 22102020043. The reversal of 22102020013 is 31002020122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31002020122 = 215501010061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22102020013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102019975 and 22102020002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102020043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6643563 + ... + 6646888.

It is an arithmetic number, because the mean of its divisors is an integer number (5528828032).

Almost surely, 222102020013 is an apocalyptic number.

It is an amenable number.

22102020013 is a deficient number, since it is larger than the sum of its proper divisors (13292115).

22102020013 is a wasteful number, since it uses less digits than its factorization.

22102020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292114.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22102020013 its reverse (31002020122), we get a palindrome (53104040135).

The spelling of 22102020013 in words is "twenty-two billion, one hundred two million, twenty thousand, thirteen".

Divisors: 1 1663 13290451 22102020013