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70899269 = 789317359
BaseRepresentation
bin1000011100111…
…01011001000101
311221102001111212
410032131121011
5121122234034
611011341205
71520430260
oct416353105
9157361455
1070899269
1137025741
121b8b1805
13118c4c3c
1495b7cd7
1563572ce
hex439d645

70899269 has 16 divisors (see below), whose sum is σ = 82425600. Its totient is φ = 59731584.

The previous prime is 70899259. The next prime is 70899293. The reversal of 70899269 is 96299807.

It is a cyclic number.

It is not a de Polignac number, because 70899269 - 24 = 70899253 is a prime.

It is a super-2 number, since 2×708992692 = 10053412689468722, 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 (70899239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197312 + ... + 197670.

It is an arithmetic number, because the mean of its divisors is an integer number (5151600).

Almost surely, 270899269 is an apocalyptic number.

It is an amenable number.

70899269 is a deficient number, since it is larger than the sum of its proper divisors (11526331).

70899269 is a wasteful number, since it uses less digits than its factorization.

70899269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 70899269 is about 8420.1703664475. The cubic root of 70899269 is about 413.8858565735.

The spelling of 70899269 in words is "seventy million, eight hundred ninety-nine thousand, two hundred sixty-nine".

Divisors: 1 7 89 317 359 623 2219 2513 28213 31951 113803 197491 223657 796621 10128467 70899269