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30606916746 = 2372419248461
BaseRepresentation
bin11100100000010100…
…000111110010001010
32221000001022110122010
4130200110013302022
51000140332313441
622021032240350
72132316333300
oct344024076212
987001273563
1030606916746
1111a8689661a
125b222400b6
132b6a043033
1416a4cb2270
15be2061116
hex720507c8a

30606916746 has 48 divisors (see below), whose sum is σ = 71378163360. Its totient is φ = 8723927520.

The previous prime is 30606916741. The next prime is 30606916771. The reversal of 30606916746 is 64761960603.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30606916695 and 30606916704.

It is not an unprimeable number, because it can be changed into a prime (30606916741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1045 + ... + 247416.

It is an arithmetic number, because the mean of its divisors is an integer number (1487045070).

Almost surely, 230606916746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30606916746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35689081680).

30606916746 is an abundant number, since it is smaller than the sum of its proper divisors (40771246614).

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

30606916746 is a wasteful number, since it uses less digits than its factorization.

30606916746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248899 (or 248892 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 30606916746 in words is "thirty billion, six hundred six million, nine hundred sixteen thousand, seven hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 419 838 1257 2514 2933 5866 8799 17598 20531 41062 61593 123186 248461 496922 745383 1490766 1739227 3478454 5217681 10435362 12174589 24349178 36523767 73047534 104105159 208210318 312315477 624630954 728736113 1457472226 2186208339 4372416678 5101152791 10202305582 15303458373 30606916746