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29809801 = 713930637
BaseRepresentation
bin111000110110…
…1110010001001
32002002111100201
41301231302021
530112403201
62542532201
7511244020
oct161556211
962074321
1029809801
11159105aa
129b97061
136239548
143d5d8b7
15293c801
hex1c6dc89

29809801 has 8 divisors (see below), whose sum is σ = 34314560. Its totient is φ = 25366608.

The previous prime is 29809799. The next prime is 29809811. The reversal of 29809801 is 10890892.

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 29809801 - 21 = 29809799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29809811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14346 + ... + 16291.

It is an arithmetic number, because the mean of its divisors is an integer number (4289320).

Almost surely, 229809801 is an apocalyptic number.

It is an amenable number.

29809801 is a deficient number, since it is larger than the sum of its proper divisors (4504759).

29809801 is a wasteful number, since it uses less digits than its factorization.

29809801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30783.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 29809801 is about 5459.8352539248. The cubic root of 29809801 is about 310.0651996056.

The spelling of 29809801 in words is "twenty-nine million, eight hundred nine thousand, eight hundred one".

Divisors: 1 7 139 973 30637 214459 4258543 29809801