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20221223330 = 2571126261329
BaseRepresentation
bin10010110101010001…
…110110000110100010
31221012020210120121102
4102311101312012202
5312403113121310
613142310554402
71314046363610
oct226521660642
957166716542
1020221223330
118637398420
123b04068a02
131ba3483109
14d9b8306b0
157d53b88a5
hex4b54761a2

20221223330 has 32 divisors (see below), whose sum is σ = 45379578240. Its totient is φ = 6302718720.

The previous prime is 20221223311. The next prime is 20221223383. The reversal of 20221223330 is 3332212202.

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, 13129895 + ... + 13131434.

It is an arithmetic number, because the mean of its divisors is an integer number (1418111820).

Almost surely, 220221223330 is an apocalyptic number.

20221223330 is an abundant number, since it is smaller than the sum of its proper divisors (25158354910).

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

20221223330 is a wasteful number, since it uses less digits than its factorization.

20221223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26261354.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20221223330 its reverse (3332212202), we get a palindrome (23553435532).

The spelling of 20221223330 in words is "twenty billion, two hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 26261329 52522658 131306645 183829303 262613290 288874619 367658606 577749238 919146515 1444373095 1838293030 2022122333 2888746190 4044244666 10110611665 20221223330