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29430293 = 103285731
BaseRepresentation
bin111000001000…
…1001000010101
32001101012202212
41300101020111
530013232133
62530443205
7505103414
oct160211025
961335685
1029430293
1115681462
129a33505
136135899
143ca147b
1528b5148
hex1c11215

29430293 has 4 divisors (see below), whose sum is σ = 29716128. Its totient is φ = 29144460.

The previous prime is 29430287. The next prime is 29430311. The reversal of 29430293 is 39203492.

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 a cyclic number.

It is not a de Polignac number, because 29430293 - 26 = 29430229 is a prime.

It is a super-2 number, since 2×294302932 = 1732284292131698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29430493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142763 + ... + 142968.

It is an arithmetic number, because the mean of its divisors is an integer number (7429032).

Almost surely, 229430293 is an apocalyptic number.

It is an amenable number.

29430293 is a deficient number, since it is larger than the sum of its proper divisors (285835).

29430293 is a wasteful number, since it uses less digits than its factorization.

29430293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285834.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 29430293 is about 5424.9694008354. The cubic root of 29430293 is about 308.7437645645.

The spelling of 29430293 in words is "twenty-nine million, four hundred thirty thousand, two hundred ninety-three".

Divisors: 1 103 285731 29430293