Search a number
-
+
70939056 = 2431477897
BaseRepresentation
bin1000011101001…
…11000110110000
311221111002002110
410032213012300
5121130022211
611012245320
71520654256
oct416470660
9157432073
1070939056
1137052621
121b910840
131190a096
1495c85d6
156363ea6
hex43a71b0

70939056 has 20 divisors (see below), whose sum is σ = 183259352. Its totient is φ = 23646336.

The previous prime is 70939051. The next prime is 70939081. The reversal of 70939056 is 65093907.

It is a super-2 number, since 2×709390562 = 10064699332342272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70939051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738901 + ... + 738996.

Almost surely, 270939056 is an apocalyptic number.

It is an amenable number.

70939056 is an abundant number, since it is smaller than the sum of its proper divisors (112320296).

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

70939056 is a wasteful number, since it uses less digits than its factorization.

70939056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477908 (or 1477902 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 70939056 is about 8422.5326357337. The cubic root of 70939056 is about 413.9632630941.

The spelling of 70939056 in words is "seventy million, nine hundred thirty-nine thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 1477897 2955794 4433691 5911588 8867382 11823176 17734764 23646352 35469528 70939056