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30139022984 = 2376110782457
BaseRepresentation
bin11100000100011011…
…001111111010001000
32212210102220000001112
4130010123033322020
5443211042213414
621502355505452
72114605316450
oct340433177210
985712800045
1030139022984
1111866769064
125a115b8288
132ac411c815
14165cab6d60
15bb5e3ad3e
hex7046cfe88

30139022984 has 64 divisors (see below), whose sum is σ = 66256652160. Its totient is φ = 12586083840.

The previous prime is 30139022981. The next prime is 30139022987. The reversal of 30139022984 is 48922093103.

It is an interprime number because it is at equal distance from previous prime (30139022981) and next prime (30139022987).

It is not an unprimeable number, because it can be changed into a prime (30139022981) 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 15 ways as a sum of consecutive naturals, for example, 324284 + ... + 406740.

It is an arithmetic number, because the mean of its divisors is an integer number (1035260190).

Almost surely, 230139022984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30139022984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33128326080).

30139022984 is an abundant number, since it is smaller than the sum of its proper divisors (36117629176).

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

30139022984 is a wasteful number, since it uses less digits than its factorization.

30139022984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82638 (or 82634 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 30139022984 in words is "thirty billion, one hundred thirty-nine million, twenty-two thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 56 61 107 122 214 244 427 428 488 749 854 856 1498 1708 2996 3416 5992 6527 13054 26108 45689 52216 82457 91378 164914 182756 329828 365512 577199 659656 1154398 2308796 4617592 5029877 8822899 10059754 17645798 20119508 35209139 35291596 40239016 61760293 70418278 70583192 123520586 140836556 247041172 281673112 494082344 538196839 1076393678 2152787356 3767377873 4305574712 7534755746 15069511492 30139022984