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23221213030 = 254355796953
BaseRepresentation
bin10101101000000101…
…111001011101100110
32012221022210211211001
4111220011321131212
5340024112304110
614400115103514
71451305024351
oct255005713546
965838724731
1023221213030
119936851054
1246008a1b9a
132260b62a52
1411a4033298
1590d95963a
hex568179766

23221213030 has 32 divisors (see below), whose sum is σ = 42847462944. Its totient is φ = 9056092416.

The previous prime is 23221212961. The next prime is 23221213039. The reversal of 23221213030 is 3031212232.

It is a junction number, because it is equal to n+sod(n) for n = 23221212989 and 23221213007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221213039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191034 + ... + 287986.

It is an arithmetic number, because the mean of its divisors is an integer number (1338983217).

Almost surely, 223221213030 is an apocalyptic number.

23221213030 is a deficient number, since it is larger than the sum of its proper divisors (19626249914).

23221213030 is a wasteful number, since it uses less digits than its factorization.

23221213030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97560.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23221213030 its reverse (3031212232), we get a palindrome (26252425262).

The spelling of 23221213030 in words is "twenty-three billion, two hundred twenty-one million, two hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 43 86 215 430 557 1114 2785 5570 23951 47902 96953 119755 193906 239510 484765 969530 4168979 8337958 20844895 41689790 54002821 108005642 270014105 540028210 2322121303 4644242606 11610606515 23221213030