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30230054542 = 261324657467
BaseRepresentation
bin11100001001110110…
…100000011010001110
32220000210011212212201
4130021312200122032
5443402343221132
621515410552114
72120062136542
oct341166403216
986023155781
1030230054542
1111903094456
125a37b9863a
132b09c4314c
14166ac11a22
15bbde1d2e7
hex709da068e

30230054542 has 8 divisors (see below), whose sum is σ = 45419056056. Its totient is φ = 15090369192.

The previous prime is 30230054539. The next prime is 30230054549. The reversal of 30230054542 is 24545003203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×302300545422 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30230054542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230054549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12327508 + ... + 12329959.

It is an arithmetic number, because the mean of its divisors is an integer number (5677382007).

Almost surely, 230230054542 is an apocalyptic number.

30230054542 is a deficient number, since it is larger than the sum of its proper divisors (15189001514).

30230054542 is a wasteful number, since it uses less digits than its factorization.

30230054542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24658082.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 30230054542 its reverse (24545003203), we get a palindrome (54775057745).

The spelling of 30230054542 in words is "thirty billion, two hundred thirty million, fifty-four thousand, five hundred forty-two".

Divisors: 1 2 613 1226 24657467 49314934 15115027271 30230054542