Search a number
-
+
7157042802 = 2327313233877
BaseRepresentation
bin1101010101001011…
…11100111001110010
3200110210020110000100
412222211330321302
5104124200332202
63142104133230
7342233601000
oct65245747162
920423213010
107157042802
113042a67208
121478a67216
138a09cc690
144bc759a70
152bd4da41c
hex1aa97ce72

7157042802 has 192 divisors, whose sum is σ = 20326924800. Its totient is φ = 1805037696.

The previous prime is 7157042771. The next prime is 7157042803. The reversal of 7157042802 is 2082407517.

7157042802 is a `hidden beast` number, since 7 + 1 + 570 + 4 + 2 + 80 + 2 = 666.

It is a super-2 number, since 2×71570428022 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7157042803) 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 95 ways as a sum of consecutive naturals, for example, 1844088 + ... + 1847964.

It is an arithmetic number, because the mean of its divisors is an integer number (105869400).

Almost surely, 27157042802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7157042802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10163462400).

7157042802 is an abundant number, since it is smaller than the sum of its proper divisors (13169881998).

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

7157042802 is a wasteful number, since it uses less digits than its factorization.

7157042802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942 (or 3925 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 7157042802 is about 84599.3073375899. The cubic root of 7157042802 is about 1927.1308547317.

The spelling of 7157042802 in words is "seven billion, one hundred fifty-seven million, forty-two thousand, eight hundred two".