Search a number
-
+
70934070 = 23523223461
BaseRepresentation
bin1000011101001…
…01111000110110
311221110211020210
410032211320312
5121124342240
611012210250
71520633604
oct416457066
9157424223
1070934070
11370498a9
121b909986
1311907a2c
1495c6874
156362780
hex43a5e36

70934070 has 64 divisors (see below), whose sum is σ = 178827264. Its totient is φ = 17973120.

The previous prime is 70934057. The next prime is 70934077. The reversal of 70934070 is 7043907.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70934077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153640 + ... + 154100.

It is an arithmetic number, because the mean of its divisors is an integer number (2794176).

Almost surely, 270934070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70934070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89413632).

70934070 is an abundant number, since it is smaller than the sum of its proper divisors (107893194).

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

70934070 is a wasteful number, since it uses less digits than its factorization.

70934070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 70934070 is about 8422.2366388033. The cubic root of 70934070 is about 413.9535643033.

Adding to 70934070 its reverse (7043907), we get a palindrome (77977977).

The spelling of 70934070 in words is "seventy million, nine hundred thirty-four thousand, seventy".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 223 230 345 446 461 669 690 922 1115 1338 1383 2230 2305 2766 3345 4610 5129 6690 6915 10258 10603 13830 15387 21206 25645 30774 31809 51290 53015 63618 76935 102803 106030 153870 159045 205606 308409 318090 514015 616818 1028030 1542045 2364469 3084090 4728938 7093407 11822345 14186814 23644690 35467035 70934070