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30120041031 = 337271351721
BaseRepresentation
bin11100000011010010…
…110101101001000111
32212202010011121201020
4130003102311221013
5443141212303111
621500441002223
72114255060463
oct340322655107
985663147636
1030120041031
1111856a836a3
125a07183373
132ac02048b2
14165a3754a3
15bb443b906
hex7034b5a47

30120041031 has 8 divisors (see below), whose sum is σ = 41245461744. Its totient is φ = 19537323840.

The previous prime is 30120041011. The next prime is 30120041041. The reversal of 30120041031 is 13014002103.

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

It is not a de Polignac number, because 30120041031 - 27 = 30120040903 is a prime.

It is a super-2 number, since 2×301200410312 (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 30120041031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120041011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135675750 + ... + 135675971.

It is an arithmetic number, because the mean of its divisors is an integer number (5155682718).

Almost surely, 230120041031 is an apocalyptic number.

30120041031 is a deficient number, since it is larger than the sum of its proper divisors (11125420713).

30120041031 is a wasteful number, since it uses less digits than its factorization.

30120041031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271351761.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30120041031 its reverse (13014002103), we get a palindrome (43134043134).

The spelling of 30120041031 in words is "thirty billion, one hundred twenty million, forty-one thousand, thirty-one".

Divisors: 1 3 37 111 271351721 814055163 10040013677 30120041031