Base | Representation |
---|---|
bin | 11100110110011011… |
… | …100101011100100100 |
3 | 2221221220112000202110 |
4 | 130312123211130210 |
5 | 1001420330101004 |
6 | 22121525241020 |
7 | 2144443263120 |
oct | 346633453444 |
9 | 87856460673 |
10 | 30977972004 |
11 | 12157291961 |
12 | 6006563170 |
13 | 2bc8b8ba65 |
14 | 16dc2a0580 |
15 | c14908589 |
hex | 7366e5724 |
30977972004 has 96 divisors (see below), whose sum is σ = 86729287680. Its totient is φ = 8414005248.
The previous prime is 30977971949. The next prime is 30977972059. The reversal of 30977972004 is 40027977903.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (30977971949) and next prime (30977972059).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265732 + ... + 364100.
It is an arithmetic number, because the mean of its divisors is an integer number (903430080).
Almost surely, 230977972004 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 30977972004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43364643840).
30977972004 is an abundant number, since it is smaller than the sum of its proper divisors (55751315676).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30977972004 is a wasteful number, since it uses less digits than its factorization.
30977972004 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 98569 (or 98567 counting only the distinct ones).
The product of its (nonzero) digits is 666792, while the sum is 48.
The spelling of 30977972004 in words is "thirty billion, nine hundred seventy-seven million, nine hundred seventy-two thousand, four".
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