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30793021376 = 261372750909
BaseRepresentation
bin11100101011011010…
…000011011111000000
32221111000111120012012
4130223122003133000
51001031003141001
622051321152052
72140036235345
oct345332033700
987430446165
1030793021376
11120719487a7
125b7462b628
132b99773710
1416c18b87cc
15c035732bb
hex72b6837c0

30793021376 has 56 divisors (see below), whose sum is σ = 65897089440. Its totient is φ = 14192335872.

The previous prime is 30793021373. The next prime is 30793021381. The reversal of 30793021376 is 67312039703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30793021373) 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, 579410 + ... + 630318.

It is an arithmetic number, because the mean of its divisors is an integer number (1176733740).

Almost surely, 230793021376 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 30793021376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32948544720).

30793021376 is an abundant number, since it is smaller than the sum of its proper divisors (35104068064).

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

30793021376 is a wasteful number, since it uses less digits than its factorization.

30793021376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51661 (or 51651 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 41.

The spelling of 30793021376 in words is "thirty billion, seven hundred ninety-three million, twenty-one thousand, three hundred seventy-six".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 208 416 727 832 1454 2908 5816 9451 11632 18902 23264 37804 46528 50909 75608 101818 151216 203636 302432 407272 604864 661817 814544 1323634 1629088 2647268 3258176 5294536 10589072 21178144 37010843 42356288 74021686 148043372 296086744 481140959 592173488 962281918 1184346976 1924563836 2368693952 3849127672 7698255344 15396510688 30793021376