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30234233421 = 347267719919
BaseRepresentation
bin11100001010000110…
…011100101001001101
32220001002001012020000
4130022012130221031
5443404430432141
621520040314513
72120142513060
oct341206345115
986032035200
1030234233421
1111905489077
125a39472a39
132b0aa77262
14166b5bc8d7
15bbe4965b6
hex70a19ca4d

30234233421 has 40 divisors (see below), whose sum is σ = 51638695680. Its totient is φ = 17269384032.

The previous prime is 30234233411. The next prime is 30234233429. The reversal of 30234233421 is 12433243203.

30234233421 is a `hidden beast` number, since 3 + 0 + 2 + 3 + 4 + 233 + 421 = 666.

It is not a de Polignac number, because 30234233421 - 26 = 30234233357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30234233429) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1507900 + ... + 1527818.

It is an arithmetic number, because the mean of its divisors is an integer number (1290967392).

Almost surely, 230234233421 is an apocalyptic number.

It is an amenable number.

30234233421 is a deficient number, since it is larger than the sum of its proper divisors (21404462259).

30234233421 is a wasteful number, since it uses less digits than its factorization.

30234233421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22615 (or 22606 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 30234233421 its reverse (12433243203), we get a palindrome (42667476624).

The spelling of 30234233421 in words is "thirty billion, two hundred thirty-four million, two hundred thirty-three thousand, four hundred twenty-one".

Divisors: 1 3 7 9 21 27 63 81 189 567 2677 8031 18739 19919 24093 56217 59757 72279 139433 168651 179271 216837 418299 505953 537813 1254897 1517859 1613439 3764691 11294073 53323163 159969489 373262141 479908467 1119786423 1439725401 3359359269 4319176203 10078077807 30234233421