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70250042453 = 292422415257
BaseRepresentation
bin100000101101100111…
…0101001010001010101
320201022211211220122012
41001123032221101111
52122333002324303
652134502114005
75034601336253
oct1013316512125
9221284756565
1070250042453
112787a354728
121174671b905
1368171a3476
143585d035d3
151c625525d8
hex105b3a9455

70250042453 has 4 divisors (see below), whose sum is σ = 72672457740. Its totient is φ = 67827627168.

The previous prime is 70250042417. The next prime is 70250042461. The reversal of 70250042453 is 35424005207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35424005207 = 41864000127.

It can be written as a sum of positive squares in 2 ways, for example, as 22099200964 + 48150841489 = 148658^2 + 219433^2 .

It is a cyclic number.

It is not a de Polignac number, because 70250042453 - 26 = 70250042389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70250042413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211207600 + ... + 1211207657.

It is an arithmetic number, because the mean of its divisors is an integer number (18168114435).

Almost surely, 270250042453 is an apocalyptic number.

It is an amenable number.

70250042453 is a deficient number, since it is larger than the sum of its proper divisors (2422415287).

70250042453 is a wasteful number, since it uses less digits than its factorization.

70250042453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422415286.

The product of its (nonzero) digits is 33600, while the sum is 32.

The spelling of 70250042453 in words is "seventy billion, two hundred fifty million, forty-two thousand, four hundred fifty-three".

Divisors: 1 29 2422415257 70250042453