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23313001003220 = 2251165650050161
BaseRepresentation
bin1010100110011111110110…
…01001001011100011010100
310001112200221010100012110202
411103033323021023203110
511023430011224100340
6121325502251240032
74624210616634665
oct523177311134324
9101480833305422
1023313001003220
117478a96330175
122746270a49018
1310015392a5a46
145a84d8c0336c
152a6658337c15
hex1533fb24b8d4

23313001003220 has 12 divisors (see below), whose sum is σ = 48957302106804. Its totient is φ = 9325200401280.

The previous prime is 23313001003147. The next prime is 23313001003223. The reversal of 23313001003220 is 2230010031332.

It can be written as a sum of positive squares in 2 ways, for example, as 8607816152464 + 14705184850756 = 2933908^2 + 3834734^2 .

It is a super-2 number, since 2×233130010032202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1165650050161 = 23313001003220 / (2 + 3 + 3 + 1 + 3 + 0 + 0 + 1 + 0 + 0 + 3 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 23313001003192 and 23313001003201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313001003223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582825025061 + ... + 582825025100.

It is an arithmetic number, because the mean of its divisors is an integer number (4079775175567).

Almost surely, 223313001003220 is an apocalyptic number.

23313001003220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23313001003220 is an abundant number, since it is smaller than the sum of its proper divisors (25644301103584).

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

23313001003220 is a wasteful number, since it uses less digits than its factorization.

23313001003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165650050170 (or 1165650050168 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23313001003220 its reverse (2230010031332), we get a palindrome (25543011034552).

The spelling of 23313001003220 in words is "twenty-three trillion, three hundred thirteen billion, one million, three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1165650050161 2331300100322 4662600200644 5828250250805 11656500501610 23313001003220