Search a number
-
+
8153912130 = 235721317191321
BaseRepresentation
bin1111001100000001…
…01101001101000010
3210001021000122122120
413212000231031002
5113144400142010
63425034345110
7406030052400
oct74600551502
923037018576
108153912130
113504741961
1216b688b196
139cc3b18a0
14574cd0470
1532ac9de70
hex1e602d342

8153912130 has 384 divisors, whose sum is σ = 27344459520. Its totient is φ = 1532805120.

The previous prime is 8153912009. The next prime is 8153912131. The reversal of 8153912130 is 312193518.

It is a super-2 number, since 2×81539121302 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8153912091 and 8153912100.

It is not an unprimeable number, because it can be changed into a prime (8153912131) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6171870 + ... + 6173190.

It is an arithmetic number, because the mean of its divisors is an integer number (71209530).

Almost surely, 28153912130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8153912130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13672229760).

8153912130 is an abundant number, since it is smaller than the sum of its proper divisors (19190547390).

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

8153912130 is a wasteful number, since it uses less digits than its factorization.

8153912130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 8153912130 is about 90299.0151109080. The cubic root of 8153912130 is about 2012.7446255883.

The spelling of 8153912130 in words is "eight billion, one hundred fifty-three million, nine hundred twelve thousand, one hundred thirty".