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70240319 = 379719571
BaseRepresentation
bin1000010111111…
…00100000111111
311220011120121022
410023330200333
5120440142234
610545254355
71512014162
oct413744077
9156146538
1070240319
1136715656
121b6343bb
1311724026
149485ad9
156276e2e
hex42fc83f

70240319 has 8 divisors (see below), whose sum is σ = 72886128. Its totient is φ = 67633920.

The previous prime is 70240309. The next prime is 70240343. The reversal of 70240319 is 91304207.

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

It is a cyclic number.

It is not a de Polignac number, because 70240319 - 212 = 70236223 is a prime.

It is a super-2 number, since 2×702403192 = 9867404826443522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70240309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6197 + ... + 13374.

It is an arithmetic number, because the mean of its divisors is an integer number (9110766).

Almost surely, 270240319 is an apocalyptic number.

70240319 is a deficient number, since it is larger than the sum of its proper divisors (2645809).

70240319 is a wasteful number, since it uses less digits than its factorization.

70240319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19705.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 70240319 is about 8380.9497671803. The cubic root of 70240319 is about 412.5996213628.

The spelling of 70240319 in words is "seventy million, two hundred forty thousand, three hundred nineteen".

Divisors: 1 37 97 3589 19571 724127 1898387 70240319