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30444210312 = 23313111178669
BaseRepresentation
bin11100010110100111…
…011100100010001000
32220120201011010100220
4130112213130202020
5444322204212222
621552541030040
72125302342435
oct342647344210
986521133326
1030444210312
1111a02a6589a
125a97855320
132b42415739
14168b43ab8c
15bd2b21b5c
hex7169dc888

30444210312 has 64 divisors (see below), whose sum is σ = 76769035200. Its totient is φ = 10060427520.

The previous prime is 30444210301. The next prime is 30444210319. The reversal of 30444210312 is 21301244403.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30444210319) 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, 3507514 + ... + 3516182.

It is an arithmetic number, because the mean of its divisors is an integer number (1199516175).

Almost surely, 230444210312 is an apocalyptic number.

It is an amenable number.

30444210312 is an abundant number, since it is smaller than the sum of its proper divisors (46324824888).

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

30444210312 is a wasteful number, since it uses less digits than its factorization.

30444210312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9926 (or 9922 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 30444210312 its reverse (21301244403), we get a palindrome (51745454715).

The spelling of 30444210312 in words is "thirty billion, four hundred forty-four million, two hundred ten thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 131 262 393 524 786 1048 1117 1572 2234 3144 3351 4468 6702 8669 8936 13404 17338 26007 26808 34676 52014 69352 104028 146327 208056 292654 438981 585308 877962 1135639 1170616 1755924 2271278 3406917 3511848 4542556 6813834 9085112 9683273 13627668 19366546 27255336 29049819 38733092 58099638 77466184 116199276 232398552 1268508763 2537017526 3805526289 5074035052 7611052578 10148070104 15222105156 30444210312