Search a number
-
+
70886070 = 2335262541
BaseRepresentation
bin1000011100110…
…10001010110110
311221101101102000
410032122022312
5121121323240
611011200130
71520343633
oct416321266
9157341360
1070886070
1137016832
121b8a6046
13118bbc28
1495b318a
156353430
hex439a2b6

70886070 has 32 divisors (see below), whose sum is σ = 189030240. Its totient is φ = 18902880.

The previous prime is 70886051. The next prime is 70886071. The reversal of 70886070 is 7068807.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70886071) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 131001 + ... + 131540.

It is an arithmetic number, because the mean of its divisors is an integer number (5907195).

Almost surely, 270886070 is an apocalyptic number.

70886070 is an abundant number, since it is smaller than the sum of its proper divisors (118144170).

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

70886070 is a wasteful number, since it uses less digits than its factorization.

70886070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262557 (or 262551 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 70886070 is about 8419.3865572261. The cubic root of 70886070 is about 413.8601712196.

The spelling of 70886070 in words is "seventy million, eight hundred eighty-six thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 262541 525082 787623 1312705 1575246 2362869 2625410 3938115 4725738 7088607 7876230 11814345 14177214 23628690 35443035 70886070