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20323011330 = 23251151196187
BaseRepresentation
bin10010111011010110…
…001000101100000010
31221110100022221111100
4102323112020230002
5313110142330310
613200344355230
71316423513616
oct227326105402
957410287440
1020323011330
1186898a0236
123b32175b16
131bbb5a16bb
14dab169346
157de2c2ec0
hex4bb588b02

20323011330 has 48 divisors (see below), whose sum is σ = 52886006784. Its totient is φ = 5414733600.

The previous prime is 20323011307. The next prime is 20323011337. The reversal of 20323011330 is 3311032302.

20323011330 is a `hidden beast` number, since 2 + 0 + 32 + 301 + 1 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20323011337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5497 + ... + 201683.

It is an arithmetic number, because the mean of its divisors is an integer number (1101791808).

Almost surely, 220323011330 is an apocalyptic number.

20323011330 is an abundant number, since it is smaller than the sum of its proper divisors (32562995454).

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

20323011330 is a wasteful number, since it uses less digits than its factorization.

20323011330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197351 (or 197348 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20323011330 its reverse (3311032302), we get a palindrome (23634043632).

The spelling of 20323011330 in words is "twenty billion, three hundred twenty-three million, eleven thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1151 2302 3453 5755 6906 10359 11510 17265 20718 34530 51795 103590 196187 392374 588561 980935 1177122 1765683 1961870 2942805 3531366 5885610 8828415 17656830 225811237 451622474 677433711 1129056185 1354867422 2032301133 2258112370 3387168555 4064602266 6774337110 10161505665 20323011330