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29371929893 = 1985312491451
BaseRepresentation
bin11011010110101101…
…000001010100100101
32210210222110122011022
4123112231001110211
5440123203224033
621254314220525
72056602166445
oct332655012445
983728418138
1029371929893
1111502763729
125838724745
132a0121ba97
1415c8c76125
15b6d914098
hex6d6b41525

29371929893 has 16 divisors (see below), whose sum is σ = 31000200000. Its totient is φ = 27752025600.

The previous prime is 29371929883. The next prime is 29371929929. The reversal of 29371929893 is 39892917392.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 29371929893 - 222 = 29367735589 is a prime.

It is a super-3 number, since 3×293719298933 (a number of 32 digits) contains 333 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 (29371929803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20241818 + ... + 20243268.

It is an arithmetic number, because the mean of its divisors is an integer number (1937512500).

Almost surely, 229371929893 is an apocalyptic number.

It is an amenable number.

29371929893 is a deficient number, since it is larger than the sum of its proper divisors (1628270107).

29371929893 is a wasteful number, since it uses less digits than its factorization.

29371929893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572.

The product of its digits is 13226976, while the sum is 62.

The spelling of 29371929893 in words is "twenty-nine billion, three hundred seventy-one million, nine hundred twenty-nine thousand, eight hundred ninety-three".

Divisors: 1 19 853 1249 1451 16207 23731 27569 1065397 1237703 1812299 20242543 23516357 34433681 1545891047 29371929893