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70438474 = 250969193
BaseRepresentation
bin1000011001011…
…00111001001010
311220112122102101
410030230321022
5121013012344
610553424014
71513500661
oct414547112
9156478371
1070438474
1136840517
121b70b00a
1311793292
1494d7dd8
1562b59d4
hex432ce4a

70438474 has 8 divisors (see below), whose sum is σ = 105866820. Its totient is φ = 35149536.

The previous prime is 70438471. The next prime is 70438483. The reversal of 70438474 is 47483407.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64883025 + 5555449 = 8055^2 + 2357^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (70438471) 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, 33579 + ... + 35614.

Almost surely, 270438474 is an apocalyptic number.

70438474 is a deficient number, since it is larger than the sum of its proper divisors (35428346).

70438474 is a wasteful number, since it uses less digits than its factorization.

70438474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69704.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 70438474 is about 8392.7631921793. The cubic root of 70438474 is about 412.9872520772.

The spelling of 70438474 in words is "seventy million, four hundred thirty-eight thousand, four hundred seventy-four".

Divisors: 1 2 509 1018 69193 138386 35219237 70438474