Search a number
-
+
70113120 = 25357211271
BaseRepresentation
bin1000010110111…
…01011101100000
311212221010010020
410023131131200
5120422104440
610542433440
71510644300
oct413353540
9155833106
1070113120
1136639030
121b592880
13116ab16c
149451600
15624e3d0
hex42dd760

70113120 has 288 divisors, whose sum is σ = 281304576. Its totient is φ = 14515200.

The previous prime is 70113119. The next prime is 70113133. The reversal of 70113120 is 2131107.

It is a super-2 number, since 2×701131202 = 9831699192268800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 70113120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 258585 + ... + 258855.

It is an arithmetic number, because the mean of its divisors is an integer number (976752).

Almost surely, 270113120 is an apocalyptic number.

70113120 is a gapful number since it is divisible by the number (70) 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 70113120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140652288).

70113120 is an abundant number, since it is smaller than the sum of its proper divisors (211191456).

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

70113120 is a wasteful number, since it uses less digits than its factorization.

70113120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 70113120 is about 8373.3577494336. The cubic root of 70113120 is about 412.3504104056.

Adding to 70113120 its reverse (2131107), we get a palindrome (72244227).

The spelling of 70113120 in words is "seventy million, one hundred thirteen thousand, one hundred twenty".