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30038883012 = 223264111291153
BaseRepresentation
bin11011111110011101…
…001111101011000100
32212112110110100211200
4123332131033223010
5443004423224022
621444421302500
72112251202255
oct337635175304
985473410750
1030038883012
1111815191456
1259a3b64a30
132aa945a3b8
14164d68ab2c
15bac259bac
hex6fe74fac4

30038883012 has 72 divisors (see below), whose sum is σ = 76183456440. Its totient is φ = 9979822080.

The previous prime is 30038883001. The next prime is 30038883041. The reversal of 30038883012 is 21038883003.

It can be written as a sum of positive squares in 4 ways, for example, as 7854567876 + 22184315136 = 88626^2 + 148944^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26052228 + ... + 26053380.

Almost surely, 230038883012 is an apocalyptic number.

It is an amenable number.

30038883012 is an abundant number, since it is smaller than the sum of its proper divisors (46144573428).

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

30038883012 is a wasteful number, since it uses less digits than its factorization.

30038883012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933 (or 2928 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

Subtracting from 30038883012 its reverse (21038883003), we obtain a palindrome (9000000009).

The spelling of 30038883012 in words is "thirty billion, thirty-eight million, eight hundred eighty-three thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 641 1129 1153 1282 1923 2258 2306 2564 3387 3459 3846 4516 4612 5769 6774 6918 7692 10161 10377 11538 13548 13836 20322 20754 23076 40644 41508 723689 739073 1301737 1447378 1478146 2171067 2217219 2603474 2894756 2956292 3905211 4342134 4434438 5206948 6513201 6651657 7810422 8684268 8868876 11715633 13026402 13303314 15620844 23431266 26052804 26606628 46862532 834413417 1668826834 2503240251 3337653668 5006480502 7509720753 10012961004 15019441506 30038883012