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70243768 = 2373143941
BaseRepresentation
bin1000010111111…
…01010110111000
311220011202100001
410023331112320
5120440300033
610545322344
71512030220
oct413752670
9156152301
1070243768
1136718201
121b6363b4
131172577a
149487080
156277e7d
hex42fd5b8

70243768 has 64 divisors (see below), whose sum is σ = 159160320. Its totient is φ = 28425600.

The previous prime is 70243753. The next prime is 70243769. The reversal of 70243768 is 86734207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70243769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74178 + ... + 75118.

It is an arithmetic number, because the mean of its divisors is an integer number (2486880).

Almost surely, 270243768 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 70243768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79580160).

70243768 is an abundant number, since it is smaller than the sum of its proper divisors (88916552).

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

70243768 is a wasteful number, since it uses less digits than its factorization.

70243768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 70243768 is about 8381.1555289232. The cubic root of 70243768 is about 412.6063745250.

The spelling of 70243768 in words is "seventy million, two hundred forty-three thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 31 43 56 62 86 124 172 217 248 301 344 434 602 868 941 1204 1333 1736 1882 2408 2666 3764 5332 6587 7528 9331 10664 13174 18662 26348 29171 37324 40463 52696 58342 74648 80926 116684 161852 204197 233368 283241 323704 408394 566482 816788 1132964 1254353 1633576 2265928 2508706 5017412 8780471 10034824 17560942 35121884 70243768