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30242712566 = 2111972350987
BaseRepresentation
bin11100001010100110…
…110010101111110110
32220001122222222102102
4130022212302233312
5443414113300231
621520542142102
72120304546443
oct341246625766
986048888372
1030242712566
111190a24a630
125a40281932
132b0c7557c1
14166c7889ca
15bc00bdacb
hex70a9b2bf6

30242712566 has 16 divisors (see below), whose sum is σ = 52092711360. Its totient is φ = 13023177480.

The previous prime is 30242712541. The next prime is 30242712569. The reversal of 30242712566 is 66521724203.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30242712569) 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, 36175076 + ... + 36175911.

It is an arithmetic number, because the mean of its divisors is an integer number (3255794460).

Almost surely, 230242712566 is an apocalyptic number.

30242712566 is a deficient number, since it is larger than the sum of its proper divisors (21849998794).

30242712566 is a wasteful number, since it uses less digits than its factorization.

30242712566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72351019.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 30242712566 in words is "thirty billion, two hundred forty-two million, seven hundred twelve thousand, five hundred sixty-six".

Divisors: 1 2 11 19 22 38 209 418 72350987 144701974 795860857 1374668753 1591721714 2749337506 15121356283 30242712566