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30670813500 = 223531747157163
BaseRepresentation
bin11100100100000111…
…110111100100111100
32221011111112202111120
4130210013313210330
51000303212013000
622031233550540
72134023420225
oct344407674474
987144482446
1030670813500
1112009969158
125b3b715450
132b7a355872
1416ad58624c
15be79836a0
hex7241f793c

30670813500 has 384 divisors, whose sum is σ = 97790644224. Its totient is φ = 7440076800.

The previous prime is 30670813493. The next prime is 30670813501. The reversal of 30670813500 is 531807603.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30670813501) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 188164419 + ... + 188164581.

It is an arithmetic number, because the mean of its divisors is an integer number (254663136).

Almost surely, 230670813500 is an apocalyptic number.

30670813500 is a gapful number since it is divisible by the number (30) 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 30670813500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48895322112).

30670813500 is an abundant number, since it is smaller than the sum of its proper divisors (67119830724).

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

30670813500 is a wasteful number, since it uses less digits than its factorization.

30670813500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 30670813500 in words is "thirty billion, six hundred seventy million, eight hundred thirteen thousand, five hundred".