Search a number
-
+
70023856 = 247625213
BaseRepresentation
bin1000010110001…
…11101010110000
311212202120200011
410023013222300
5120411230411
610540504304
71510123120
oct413075260
9155676604
1070023856
1136587a61
121b54b094
1311679646
14942ac80
156232c21
hex42c7ab0

70023856 has 20 divisors (see below), whose sum is σ = 155053072. Its totient is φ = 30010176.

The previous prime is 70023839. The next prime is 70023857. The reversal of 70023856 is 65832007.

It is not an unprimeable number, because it can be changed into a prime (70023857) 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, 312495 + ... + 312718.

Almost surely, 270023856 is an apocalyptic number.

It is an amenable number.

70023856 is an abundant number, since it is smaller than the sum of its proper divisors (85029216).

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

70023856 is a wasteful number, since it uses less digits than its factorization.

70023856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625228 (or 625222 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 70023856 is about 8368.0258125797. The cubic root of 70023856 is about 412.1753424644.

The spelling of 70023856 in words is "seventy million, twenty-three thousand, eight hundred fifty-six".

Divisors: 1 2 4 7 8 14 16 28 56 112 625213 1250426 2500852 4376491 5001704 8752982 10003408 17505964 35011928 70023856