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29470613 = 231281331
BaseRepresentation
bin111000001101…
…0111110010101
32001110021002012
41300122332111
530021024423
62531354005
7505332104
oct160327625
961407065
1029470613
11156a9787
129a52905
13614b043
143cb203b
1528c2078
hex1c1af95

29470613 has 4 divisors (see below), whose sum is σ = 30751968. Its totient is φ = 28189260.

The previous prime is 29470603. The next prime is 29470621. The reversal of 29470613 is 31607492.

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 not a de Polignac number, because 29470613 - 26 = 29470549 is a prime.

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 29470613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29470603) 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, 640643 + ... + 640688.

It is an arithmetic number, because the mean of its divisors is an integer number (7687992).

Almost surely, 229470613 is an apocalyptic number.

29470613 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29470613 is a deficient number, since it is larger than the sum of its proper divisors (1281355).

29470613 is a wasteful number, since it uses less digits than its factorization.

29470613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281354.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 29470613 is about 5428.6842789022. The cubic root of 29470613 is about 308.8846949544.

It can be divided in two parts, 294 and 70613, that added together give a palindrome (70907).

The spelling of 29470613 in words is "twenty-nine million, four hundred seventy thousand, six hundred thirteen".

Divisors: 1 23 1281331 29470613