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30140013040 = 2451672255989
BaseRepresentation
bin11100000100011111…
…000001100111110000
32212210111202022011021
4130010133001213300
5443211320404130
621502433025224
72114616612064
oct340437014760
985714668137
1030140013040
1111867284995
125a119b5214
132ac43a8357
14165cc93aa4
15bb608437a
hex7047c19f0

30140013040 has 40 divisors (see below), whose sum is σ = 70495175520. Its totient is φ = 11983808256.

The previous prime is 30140013011. The next prime is 30140013049. The reversal of 30140013040 is 4031004103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140013049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114635 + ... + 1141354.

It is an arithmetic number, because the mean of its divisors is an integer number (1762379388).

Almost surely, 230140013040 is an apocalyptic number.

It is an amenable number.

30140013040 is an abundant number, since it is smaller than the sum of its proper divisors (40355162480).

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

30140013040 is a wasteful number, since it uses less digits than its factorization.

30140013040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256169 (or 2256163 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30140013040 its reverse (4031004103), we get a palindrome (34171017143).

The spelling of 30140013040 in words is "thirty billion, one hundred forty million, thirteen thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 167 334 668 835 1336 1670 2672 3340 6680 13360 2255989 4511978 9023956 11279945 18047912 22559890 36095824 45119780 90239560 180479120 376750163 753500326 1507000652 1883750815 3014001304 3767501630 6028002608 7535003260 15070006520 30140013040