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29806309407 = 3713011090967
BaseRepresentation
bin11011110000100110…
…000011000000011111
32211221020211101211110
4123300212003000133
5442020403400112
621405352353103
72103425310150
oct336046030037
984836741743
1029806309407
1111705980466
12593a0a5793
132a70209894
14162a829927
15b96b1913c
hex6f098301f

29806309407 has 16 divisors (see below), whose sum is σ = 45454090752. Its totient is φ = 17019069600.

The previous prime is 29806309397. The next prime is 29806309453. The reversal of 29806309407 is 70490360892.

It is not a de Polignac number, because 29806309407 - 220 = 29805260831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29806309007) 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, 518163 + ... + 572804.

It is an arithmetic number, because the mean of its divisors is an integer number (2840880672).

Almost surely, 229806309407 is an apocalyptic number.

29806309407 is a deficient number, since it is larger than the sum of its proper divisors (15647781345).

29806309407 is a wasteful number, since it uses less digits than its factorization.

29806309407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092278.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 29806309407 in words is "twenty-nine billion, eight hundred six million, three hundred nine thousand, four hundred seven".

Divisors: 1 3 7 21 1301 3903 9107 27321 1090967 3272901 7636769 22910307 1419348067 4258044201 9935436469 29806309407