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29669135745 = 3531154341351
BaseRepresentation
bin11011101000011010…
…110001010110000001
32211120200201020221110
4123220122301112001
5441230244320440
621344012313533
72100141331014
oct335032612601
984520636843
1029669135745
11116454a98a7
1259001728a9
132a4a97bb32
14161651d37b
15b89a70080
hex6e86b1581

29669135745 has 32 divisors (see below), whose sum is σ = 49034870784. Its totient is φ = 15302808000.

The previous prime is 29669135731. The next prime is 29669135747. The reversal of 29669135745 is 54753196692.

It is not a de Polignac number, because 29669135745 - 212 = 29669131649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29669135747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696820 + ... + 738170.

It is an arithmetic number, because the mean of its divisors is an integer number (1532339712).

Almost surely, 229669135745 is an apocalyptic number.

It is an amenable number.

29669135745 is a deficient number, since it is larger than the sum of its proper divisors (19365735039).

29669135745 is a wasteful number, since it uses less digits than its factorization.

29669135745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42933.

The product of its digits is 12247200, while the sum is 57.

The spelling of 29669135745 in words is "twenty-nine billion, six hundred sixty-nine million, one hundred thirty-five thousand, seven hundred forty-five".

Divisors: 1 3 5 15 31 93 155 465 1543 4629 7715 23145 41351 47833 124053 143499 206755 239165 620265 717495 1281881 3845643 6409405 19228215 63804593 191413779 319022965 957068895 1977942383 5933827149 9889711915 29669135745