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29389386 = 2313376787
BaseRepresentation
bin111000000011…
…1001001001010
32001022010122210
41300013021022
530010430021
62525525550
7504543225
oct160071112
961263583
1029389386
1115653754
129a138b6
136120090
143c905bc
1528a7e76
hex1c0724a

29389386 has 16 divisors (see below), whose sum is σ = 63300384. Its totient is φ = 9042864.

The previous prime is 29389363. The next prime is 29389391. The reversal of 29389386 is 68398392.

It is a super-3 number, since 3×293893863 (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188316 + ... + 188471.

It is an arithmetic number, because the mean of its divisors is an integer number (3956274).

Almost surely, 229389386 is an apocalyptic number.

29389386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

29389386 is an abundant number, since it is smaller than the sum of its proper divisors (33910998).

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

29389386 is a wasteful number, since it uses less digits than its factorization.

29389386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376805.

The product of its digits is 559872, while the sum is 48.

The square root of 29389386 is about 5421.1978381166. The cubic root of 29389386 is about 308.6006508309.

The spelling of 29389386 in words is "twenty-nine million, three hundred eighty-nine thousand, three hundred eighty-six".

Divisors: 1 2 3 6 13 26 39 78 376787 753574 1130361 2260722 4898231 9796462 14694693 29389386