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70234753 = 437316061
BaseRepresentation
bin1000010111110…
…11001010000001
311220011021222011
410023323022001
5120440003003
610545212521
71511662021
oct413731201
9156137864
1070234753
1136711456
121b631141
1311721634
149483a81
15627546d
hex42fb281

70234753 has 4 divisors (see below), whose sum is σ = 70255188. Its totient is φ = 70214320.

The previous prime is 70234741. The next prime is 70234757. The reversal of 70234753 is 35743207.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15000129 + 55234624 = 3873^2 + 7432^2 .

It is a cyclic number.

It is not a de Polignac number, because 70234753 - 217 = 70103681 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70234757) 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, 3658 + ... + 12403.

It is an arithmetic number, because the mean of its divisors is an integer number (17563797).

Almost surely, 270234753 is an apocalyptic number.

It is an amenable number.

70234753 is a deficient number, since it is larger than the sum of its proper divisors (20435).

70234753 is a wasteful number, since it uses less digits than its factorization.

70234753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20434.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 70234753 is about 8380.6176979982. The cubic root of 70234753 is about 412.5887226359.

The spelling of 70234753 in words is "seventy million, two hundred thirty-four thousand, seven hundred fifty-three".

Divisors: 1 4373 16061 70234753