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29187038067168 = 2531941536121979
BaseRepresentation
bin1101010001011101000110…
…00010010011100111100000
310211100020211212101121101010
412220232203002103213200
512311200023221122133
6142024201251340520
76101460004104432
oct650564302234740
9124306755347333
1029187038067168
1193331760a2383
123334787bb1740
131339430c5ba47
1472c935768652
1535934daa4263
hex1a8ba30939e0

29187038067168 has 576 divisors, whose sum is σ = 85619979244800. Its totient is φ = 8673476198400.

The previous prime is 29187038067137. The next prime is 29187038067241. The reversal of 29187038067168 is 86176083078192.

It is a super-2 number, since 2×291870380671682 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29187038067099 and 29187038067108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14748376003 + ... + 14748377981.

It is an arithmetic number, because the mean of its divisors is an integer number (148645797300).

Almost surely, 229187038067168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29187038067168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42809989622400).

29187038067168 is an abundant number, since it is smaller than the sum of its proper divisors (56432941177632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29187038067168 is a wasteful number, since it uses less digits than its factorization.

29187038067168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 66.

The spelling of 29187038067168 in words is "twenty-nine trillion, one hundred eighty-seven billion, thirty-eight million, sixty-seven thousand, one hundred sixty-eight".