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813090929702 = 21921397129729
BaseRepresentation
bin10111101010011111111…
…11101111110000100110
32212201201201000212112212
423311033333233300212
5101310202234222302
61421310120243422
7112513102603562
oct13651777576046
92781651025485
10813090929702
112939146a5a67
121116ba610572
135b89c13751c
142b4d4c006a2
151623c706052
hexbd4ffefc26

813090929702 has 8 divisors (see below), whose sum is σ = 1283827783800. Its totient is φ = 385148335104.

The previous prime is 813090929687. The next prime is 813090929711. The reversal of 813090929702 is 207929090318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8130909297022 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10698564827 + ... + 10698564902.

It is an arithmetic number, because the mean of its divisors is an integer number (160478472975).

Almost surely, 2813090929702 is an apocalyptic number.

813090929702 is a deficient number, since it is larger than the sum of its proper divisors (470736854098).

813090929702 is a wasteful number, since it uses less digits than its factorization.

813090929702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21397129750.

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

The spelling of 813090929702 in words is "eight hundred thirteen billion, ninety million, nine hundred twenty-nine thousand, seven hundred two".

Divisors: 1 2 19 38 21397129729 42794259458 406545464851 813090929702