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70047104 = 2731127139
BaseRepresentation
bin1000010110011…
…01010110000000
311212210202120012
410023031112000
5120413001404
610541204052
71510250651
oct413152600
9155722505
1070047104
11365a3476
121b560628
13116870ba
149435528
156239a6e
hex42cd580

70047104 has 64 divisors (see below), whose sum is σ = 146227200. Its totient is φ = 33384960.

The previous prime is 70047071. The next prime is 70047113. The reversal of 70047104 is 40174007.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 70047104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503867 + ... + 504005.

It is an arithmetic number, because the mean of its divisors is an integer number (2284800).

Almost surely, 270047104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70047104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73113600).

70047104 is an abundant number, since it is smaller than the sum of its proper divisors (76180096).

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

70047104 is a wasteful number, since it uses less digits than its factorization.

70047104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 70047104 is about 8369.4147943569. The cubic root of 70047104 is about 412.2209516451.

The spelling of 70047104 in words is "seventy million, forty-seven thousand, one hundred four".

Divisors: 1 2 4 8 16 31 32 62 64 124 127 128 139 248 254 278 496 508 556 992 1016 1112 1984 2032 2224 3937 3968 4064 4309 4448 7874 8128 8618 8896 15748 16256 17236 17653 17792 31496 34472 35306 62992 68944 70612 125984 137888 141224 251968 275776 282448 503936 547243 551552 564896 1094486 1129792 2188972 2259584 4377944 8755888 17511776 35023552 70047104