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70374449 = 139506291
BaseRepresentation
bin1000011000111…
…01010000110001
311220102101121002
410030131100301
5121003440244
610552211345
71513113215
oct414352061
9156371532
1070374449
11367a7402
121b699b55
13117700b2
1494bc945
1562a1a4e
hex431d431

70374449 has 4 divisors (see below), whose sum is σ = 70880880. Its totient is φ = 69868020.

The previous prime is 70374443. The next prime is 70374487. The reversal of 70374449 is 94447307.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94447307 = 432196449.

It is a cyclic number.

It is not a de Polignac number, because 70374449 - 212 = 70370353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70374443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253007 + ... + 253284.

It is an arithmetic number, because the mean of its divisors is an integer number (17720220).

Almost surely, 270374449 is an apocalyptic number.

It is an amenable number.

70374449 is a deficient number, since it is larger than the sum of its proper divisors (506431).

70374449 is a wasteful number, since it uses less digits than its factorization.

70374449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506430.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 70374449 is about 8388.9480270175. The cubic root of 70374449 is about 412.8620859916.

The spelling of 70374449 in words is "seventy million, three hundred seventy-four thousand, four hundred forty-nine".

Divisors: 1 139 506291 70374449