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29393031 = 39797677
BaseRepresentation
bin111000000100…
…0000010000111
32001022022122210
41300020002013
530011034111
62525554503
7504556653
oct160100207
961268583
1029393031
1115656468
129a15a33
136121935
143c91a63
1528a90a6
hex1c08087

29393031 has 4 divisors (see below), whose sum is σ = 39190712. Its totient is φ = 19595352.

The previous prime is 29393029. The next prime is 29393047. The reversal of 29393031 is 13039392.

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

It is not a de Polignac number, because 29393031 - 21 = 29393029 is a prime.

It is a super-2 number, since 2×293930312 = 1727900542733922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29393031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29393431) 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, 4898836 + ... + 4898841.

It is an arithmetic number, because the mean of its divisors is an integer number (9797678).

Almost surely, 229393031 is an apocalyptic number.

29393031 is a deficient number, since it is larger than the sum of its proper divisors (9797681).

29393031 is an equidigital number, since it uses as much as digits as its factorization.

29393031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9797680.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 29393031 is about 5421.5340080092. The cubic root of 29393031 is about 308.6134083036.

The spelling of 29393031 in words is "twenty-nine million, three hundred ninety-three thousand, thirty-one".

Divisors: 1 3 9797677 29393031