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230233030021 = 17227389153371
BaseRepresentation
bin1101011001101011110…
…1010011110110000101
3211000021100001201222001
43112122331103312011
512233004123430041
6253433444505301
722430250315451
oct3263275236605
9730240051861
10230233030021
11897065a8125
12387546ab231
1318931a64757
14b201469661
155ec777e131
hex359af53d85

230233030021 has 16 divisors (see below), whose sum is σ = 245481088320. Its totient is φ = 215179336960.

The previous prime is 230233029959. The next prime is 230233030039. The reversal of 230233030021 is 120030332032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 230233030021 - 213 = 230233021829 is a prime.

It is a super-2 number, since 2×2302330300212 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230233030061) 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, 1424466 + ... + 1577836.

It is an arithmetic number, because the mean of its divisors is an integer number (15342568020).

Almost surely, 2230233030021 is an apocalyptic number.

It is an amenable number.

230233030021 is a deficient number, since it is larger than the sum of its proper divisors (15248058299).

230233030021 is a wasteful number, since it uses less digits than its factorization.

230233030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154004.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 230233030021 its reverse (120030332032), we get a palindrome (350263362053).

The spelling of 230233030021 in words is "two hundred thirty billion, two hundred thirty-three million, thirty thousand, twenty-one".

Divisors: 1 17 227 389 3859 6613 88303 153371 1501151 2607307 34815217 59661319 591858689 1014242423 13543119413 230233030021