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70016247 = 327337613
BaseRepresentation
bin1000010110001…
…01110011110111
311212202012020100
410023011303313
5120411004442
610540405143
71510062000
oct413056367
9155665210
1070016247
1136582274
121b5467b3
1311676042
1494281a7
15623084c
hex42c5cf7

70016247 has 48 divisors (see below), whose sum is σ = 121326400. Its totient is φ = 38864448.

The previous prime is 70016239. The next prime is 70016257. The reversal of 70016247 is 74261007.

It is not a de Polignac number, because 70016247 - 23 = 70016239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70016247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70016257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113913 + ... + 114525.

Almost surely, 270016247 is an apocalyptic number.

70016247 is a deficient number, since it is larger than the sum of its proper divisors (51310153).

70016247 is a wasteful number, since it uses less digits than its factorization.

70016247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70016247 is about 8367.5711529691. The cubic root of 70016247 is about 412.1604125249.

The spelling of 70016247 in words is "seventy million, sixteen thousand, two hundred forty-seven".

Divisors: 1 3 7 9 21 37 49 63 111 147 259 333 343 441 613 777 1029 1813 1839 2331 3087 4291 5439 5517 12691 12873 16317 22681 30037 38073 38619 68043 90111 114219 158767 204129 210259 270333 476301 630777 1111369 1428903 1892331 3334107 7779583 10002321 23338749 70016247