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30381490848 = 2534795991103
BaseRepresentation
bin11100010010111000…
…001100001010100000
32220102100010122102210
4130102320030022200
5444210130201343
621542420442120
72123611261032
oct342270141240
986370118383
1030381490848
1111980617825
125a7a849340
132b32425a27
141682d91c52
15bcc383333
hex712e0c2a0

30381490848 has 96 divisors (see below), whose sum is σ = 80123904000. Its totient is φ = 10080002816.

The previous prime is 30381490817. The next prime is 30381490879. The reversal of 30381490848 is 84809418303.

It is an interprime number because it is at equal distance from previous prime (30381490817) and next prime (30381490879).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×303814908482 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 30381490797 and 30381490806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27543865 + ... + 27544967.

It is an arithmetic number, because the mean of its divisors is an integer number (834624000).

Almost surely, 230381490848 is an apocalyptic number.

It is an amenable number.

30381490848 is an abundant number, since it is smaller than the sum of its proper divisors (49742413152).

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

30381490848 is a wasteful number, since it uses less digits than its factorization.

30381490848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2186 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 30381490848 in words is "thirty billion, three hundred eighty-one million, four hundred ninety thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 479 599 958 1103 1198 1437 1797 1916 2206 2396 2874 3309 3594 3832 4412 4792 5748 6618 7188 7664 8824 9584 11496 13236 14376 15328 17648 19168 22992 26472 28752 35296 45984 52944 57504 105888 286921 528337 573842 660697 860763 1056674 1147684 1321394 1585011 1721526 1982091 2113348 2295368 2642788 3170022 3443052 3964182 4226696 4590736 5285576 6340044 6886104 7928364 8453392 9181472 10571152 12680088 13772208 15856728 16906784 21142304 25360176 27544416 31713456 50720352 63426912 316473863 632947726 949421589 1265895452 1898843178 2531790904 3797686356 5063581808 7595372712 10127163616 15190745424 30381490848