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29526421 = 91132411
BaseRepresentation
bin111000010100…
…0100110010101
32001120002122011
41300220212111
530024321141
62532504221
7505653601
oct160504625
961502564
1029526421
1115737701
129a7b071
13616a572
143cc8501
1528d3881
hex1c28995

29526421 has 4 divisors (see below), whose sum is σ = 29559744. Its totient is φ = 29493100.

The previous prime is 29526403. The next prime is 29526439. The reversal of 29526421 is 12462592.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (29526403) and next prime (29526439).

It is a cyclic number.

It is not a de Polignac number, because 29526421 - 211 = 29524373 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 (29526521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15295 + ... + 17116.

It is an arithmetic number, because the mean of its divisors is an integer number (7389936).

Almost surely, 229526421 is an apocalyptic number.

29526421 is the 2905-th centered heptagonal number.

It is an amenable number.

29526421 is a deficient number, since it is larger than the sum of its proper divisors (33323).

29526421 is an equidigital number, since it uses as much as digits as its factorization.

29526421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33322.

The product of its digits is 8640, while the sum is 31.

The square root of 29526421 is about 5433.8219514445. The cubic root of 29526421 is about 309.0795485785.

The spelling of 29526421 in words is "twenty-nine million, five hundred twenty-six thousand, four hundred twenty-one".

Divisors: 1 911 32411 29526421