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29877960169 = 374318779359
BaseRepresentation
bin11011110100110111…
…010111110111101001
32212010020122122012101
4123310313113313221
5442142224211134
621420432213401
72105255320411
oct336467276751
985106578171
1029877960169
1111742369772
12595a09a261
132a82005895
14163615b641
15b9d06de14
hex6f4dd7de9

29877960169 has 8 divisors (see below), whose sum is σ = 31399089920. Its totient is φ = 28394389296.

The previous prime is 29877960137. The next prime is 29877960187. The reversal of 29877960169 is 96106977892.

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

It is a cyclic number.

It is not a de Polignac number, because 29877960169 - 25 = 29877960137 is a prime.

It is a super-2 number, since 2×298779601692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29877960169.

It is not an unprimeable number, because it can be changed into a prime (29877960269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9388089 + ... + 9391270.

It is an arithmetic number, because the mean of its divisors is an integer number (3924886240).

Almost surely, 229877960169 is an apocalyptic number.

It is an amenable number.

29877960169 is a deficient number, since it is larger than the sum of its proper divisors (1521129751).

29877960169 is a wasteful number, since it uses less digits than its factorization.

29877960169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18779439.

The product of its (nonzero) digits is 20575296, while the sum is 64.

The spelling of 29877960169 in words is "twenty-nine billion, eight hundred seventy-seven million, nine hundred sixty thousand, one hundred sixty-nine".

Divisors: 1 37 43 1591 18779359 694836283 807512437 29877960169