Search a number
-
+
70057806 = 23713128311
BaseRepresentation
bin1000010110011…
…11111101001110
311212211022020120
410023033331032
5120413322211
610541325410
71510324110
oct413177516
9155738216
1070057806
1136600515
121b566866
131168bc30
1494393b0
15623cd06
hex42cff4e

70057806 has 32 divisors (see below), whose sum is σ = 172451328. Its totient is φ = 18476640.

The previous prime is 70057787. The next prime is 70057811. The reversal of 70057806 is 60875007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63610 + ... + 64701.

It is an arithmetic number, because the mean of its divisors is an integer number (5389104).

Almost surely, 270057806 is an apocalyptic number.

70057806 is an abundant number, since it is smaller than the sum of its proper divisors (102393522).

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

70057806 is a wasteful number, since it uses less digits than its factorization.

70057806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128336.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 70057806 is about 8370.0541216888. The cubic root of 70057806 is about 412.2419440142.

The spelling of 70057806 in words is "seventy million, fifty-seven thousand, eight hundred six".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 128311 256622 384933 769866 898177 1668043 1796354 2694531 3336086 5004129 5389062 10008258 11676301 23352602 35028903 70057806