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29531087 = 471016221
BaseRepresentation
bin111000010100…
…1101111001111
32001120100000222
41300221233033
530024443322
62532541555
7506003315
oct160515717
961510028
1029531087
1115740163
129a818bb
13616c721
143cca0b5
1528d4e42
hex1c29bcf

29531087 has 8 divisors (see below), whose sum is σ = 30462912. Its totient is φ = 28612000.

The previous prime is 29531071. The next prime is 29531113. The reversal of 29531087 is 78013592.

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 29531087 - 24 = 29531071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29531387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637 + ... + 7857.

It is an arithmetic number, because the mean of its divisors is an integer number (3807864).

Almost surely, 229531087 is an apocalyptic number.

29531087 is a deficient number, since it is larger than the sum of its proper divisors (931825).

29531087 is a wasteful number, since it uses less digits than its factorization.

29531087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6369.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 29531087 is about 5434.2512823755. The cubic root of 29531087 is about 309.0958287908.

The spelling of 29531087 in words is "twenty-nine million, five hundred thirty-one thousand, eighty-seven".

Divisors: 1 47 101 4747 6221 292387 628321 29531087