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23320023020 = 2257179798329
BaseRepresentation
bin10101101101111110…
…110100111111101100
32020012012201220122022
4111231332310333230
5340224411214040
614414005005312
71453614632210
oct255576647754
966165656568
1023320023020
1199875aa4a8
1246299b3838
13227847a9b8
1411b31d4940
159174766b5
hex56dfb4fec

23320023020 has 48 divisors (see below), whose sum is σ = 59260299840. Its totient is φ = 7525115904.

The previous prime is 23320023019. The next prime is 23320023043. The reversal of 23320023020 is 2032002332.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 23320023020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4896785 + ... + 4901544.

It is an arithmetic number, because the mean of its divisors is an integer number (1234589580).

Almost surely, 223320023020 is an apocalyptic number.

23320023020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23320023020 is an abundant number, since it is smaller than the sum of its proper divisors (35940276820).

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

23320023020 is a wasteful number, since it uses less digits than its factorization.

23320023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9798362 (or 9798360 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 23320023020 its reverse (2032002332), we get a palindrome (25352025352).

The spelling of 23320023020 in words is "twenty-three billion, three hundred twenty million, twenty-three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 17 20 28 34 35 68 70 85 119 140 170 238 340 476 595 1190 2380 9798329 19596658 39193316 48991645 68588303 97983290 137176606 166571593 195966580 274353212 333143186 342941515 666286372 685883030 832857965 1166001151 1371766060 1665715930 2332002302 3331431860 4664004604 5830005755 11660011510 23320023020