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30994226748 = 223319233717749
BaseRepresentation
bin11100110111011001…
…100101111000111100
32222000001002212002000
4130313121211320330
51001434010223443
622123305502300
72145031403052
oct346731457074
988001085060
1030994226748
1112165484331
12600baa1990
132bcc360554
1417004d21d2
15c160698d3
hex737665e3c

30994226748 has 192 divisors, whose sum is σ = 90652800000. Its totient is φ = 9108557568.

The previous prime is 30994226741. The next prime is 30994226759. The reversal of 30994226748 is 84762249903.

30994226748 is a `hidden beast` number, since 30 + 99 + 422 + 67 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 30994226694 and 30994226703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30994226741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1737378 + ... + 1755126.

It is an arithmetic number, because the mean of its divisors is an integer number (472150000).

Almost surely, 230994226748 is an apocalyptic number.

30994226748 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30994226748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45326400000).

30994226748 is an abundant number, since it is smaller than the sum of its proper divisors (59658573252).

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

30994226748 is a wasteful number, since it uses less digits than its factorization.

30994226748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17841 (or 17833 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 30994226748 in words is "thirty billion, nine hundred ninety-four million, two hundred twenty-six thousand, seven hundred forty-eight".