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30142030032 = 24321327157739
BaseRepresentation
bin11100000100100110…
…101110000011010000
32212210122112202221200
4130010212232003100
5443212324430112
621502544151200
72114643012402
oct340446560320
985718482850
1030142030032
1111868432324
125a12608500
132ac493343a
14165d25ab72
15bb6331cdc
hex7049ae0d0

30142030032 has 60 divisors (see below), whose sum is σ = 84419924160. Its totient is φ = 10039708224.

The previous prime is 30142030031. The next prime is 30142030099. The reversal of 30142030032 is 23003024103.

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

It is a junction number, because it is equal to n+sod(n) for n = 30142029987 and 30142030014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142030031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112219 + ... + 269957.

It is an arithmetic number, because the mean of its divisors is an integer number (1406998736).

Almost surely, 230142030032 is an apocalyptic number.

It is an amenable number.

30142030032 is an abundant number, since it is smaller than the sum of its proper divisors (54277894128).

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

30142030032 is a wasteful number, since it uses less digits than its factorization.

30142030032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159080 (or 159071 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30142030032 its reverse (23003024103), we get a palindrome (53145054135).

The spelling of 30142030032 in words is "thirty billion, one hundred forty-two million, thirty thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 1327 2654 3981 5308 7962 10616 11943 15924 21232 23886 31848 47772 63696 95544 157739 191088 315478 473217 630956 946434 1261912 1419651 1892868 2523824 2839302 3785736 5678604 7571472 11357208 22714416 209319653 418639306 627958959 837278612 1255917918 1674557224 1883876877 2511835836 3349114448 3767753754 5023671672 7535507508 10047343344 15071015016 30142030032