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70990265 = 519971347
BaseRepresentation
bin1000011101100…
…11100110111001
311221120200100002
410032303212321
5121133142030
611013322345
71521256463
oct416634671
9157520302
1070990265
1137088045
121b9363b5
1311927498
1495dd133
156374245
hex43b39b9

70990265 has 8 divisors (see below), whose sum is σ = 85617600. Its totient is φ = 56506032.

The previous prime is 70990247. The next prime is 70990277. The reversal of 70990265 is 56209907.

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 70990265 - 26 = 70990201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34679 + ... + 36668.

It is an arithmetic number, because the mean of its divisors is an integer number (10702200).

Almost surely, 270990265 is an apocalyptic number.

It is an amenable number.

70990265 is a deficient number, since it is larger than the sum of its proper divisors (14627335).

70990265 is a wasteful number, since it uses less digits than its factorization.

70990265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71551.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 70990265 is about 8425.5720874015. The cubic root of 70990265 is about 414.0628487905.

The spelling of 70990265 in words is "seventy million, nine hundred ninety thousand, two hundred sixty-five".

Divisors: 1 5 199 995 71347 356735 14198053 70990265