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70440083 = 710062869
BaseRepresentation
bin1000011001011…
…01010010010011
311220112201121222
410030231102103
5121013040313
610553435255
71513505450
oct414552223
9156481558
1070440083
113684174a
121b70bb2b
1311793c2c
1494d8827
1562b6208
hex432d493

70440083 has 4 divisors (see below), whose sum is σ = 80502960. Its totient is φ = 60377208.

The previous prime is 70440067. The next prime is 70440089. The reversal of 70440083 is 38004407.

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

It is a cyclic number.

It is not a de Polignac number, because 70440083 - 24 = 70440067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70440089) 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, 5031428 + ... + 5031441.

It is an arithmetic number, because the mean of its divisors is an integer number (20125740).

Almost surely, 270440083 is an apocalyptic number.

70440083 is a deficient number, since it is larger than the sum of its proper divisors (10062877).

70440083 is a wasteful number, since it uses less digits than its factorization.

70440083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10062876.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 70440083 is about 8392.8590480241. The cubic root of 70440083 is about 412.9903966249.

The spelling of 70440083 in words is "seventy million, four hundred forty thousand, eighty-three".

Divisors: 1 7 10062869 70440083