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29807401 = 132292877
BaseRepresentation
bin111000110110…
…1001100101001
32002002101001211
41301231030221
530112314101
62542513121
7511234021
oct161551451
962071054
1029807401
1115909818
129b957a1
136238420
143d5ca81
15293bc51
hex1c6d329

29807401 has 4 divisors (see below), whose sum is σ = 32100292. Its totient is φ = 27514512.

The previous prime is 29807387. The next prime is 29807413. The reversal of 29807401 is 10470892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15023376 + 14784025 = 3876^2 + 3845^2 .

It is a cyclic number.

It is not a de Polignac number, because 29807401 - 217 = 29676329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29807441) 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 3 ways as a sum of consecutive naturals, for example, 1146426 + ... + 1146451.

It is an arithmetic number, because the mean of its divisors is an integer number (8025073).

Almost surely, 229807401 is an apocalyptic number.

It is an amenable number.

29807401 is a deficient number, since it is larger than the sum of its proper divisors (2292891).

29807401 is a wasteful number, since it uses less digits than its factorization.

29807401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292890.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 29807401 is about 5459.6154626494. The cubic root of 29807401 is about 310.0568782211.

The spelling of 29807401 in words is "twenty-nine million, eight hundred seven thousand, four hundred one".

Divisors: 1 13 2292877 29807401