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70744297 = 13232231061
BaseRepresentation
bin1000011011101…
…11100011101001
311221010011221011
410031313203221
5121102304142
611004143521
71516213411
oct415674351
9157104834
1070744297
1136a2a268
121b837ba1
131186c540
149577641
156326417
hex43778e9

70744297 has 16 divisors (see below), whose sum is σ = 79930368. Its totient is φ = 62124480.

The previous prime is 70744273. The next prime is 70744319. The reversal of 70744297 is 79244707.

It is a cyclic number.

It is not a de Polignac number, because 70744297 - 27 = 70744169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70744237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66147 + ... + 67207.

It is an arithmetic number, because the mean of its divisors is an integer number (4995648).

Almost surely, 270744297 is an apocalyptic number.

It is an amenable number.

70744297 is a deficient number, since it is larger than the sum of its proper divisors (9186071).

70744297 is a wasteful number, since it uses less digits than its factorization.

70744297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 70744297 is about 8410.9629056369. The cubic root of 70744297 is about 413.5840786203.

The spelling of 70744297 in words is "seventy million, seven hundred forty-four thousand, two hundred ninety-seven".

Divisors: 1 13 23 223 299 1061 2899 5129 13793 24403 66677 236603 317239 3075839 5441869 70744297