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29490613 = 73403981
BaseRepresentation
bin111000001111…
…1110110110101
32001111021111221
41300133312311
530022144423
62532030341
7505444315
oct160376665
961437457
1029490613
1115712809
129a623b1
136157189
143cb9445
1528c7e5d
hex1c1fdb5

29490613 has 4 divisors (see below), whose sum is σ = 29894668. Its totient is φ = 29086560.

The previous prime is 29490611. The next prime is 29490649. The reversal of 29490613 is 31609492.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24373969 + 5116644 = 4937^2 + 2262^2 .

It is a cyclic number.

It is not a de Polignac number, because 29490613 - 21 = 29490611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29490611) 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, 201918 + ... + 202063.

It is an arithmetic number, because the mean of its divisors is an integer number (7473667).

Almost surely, 229490613 is an apocalyptic number.

It is an amenable number.

29490613 is a deficient number, since it is larger than the sum of its proper divisors (404055).

29490613 is an equidigital number, since it uses as much as digits as its factorization.

29490613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404054.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 29490613 is about 5430.5260334520. The cubic root of 29490613 is about 308.9545532111.

It can be divided in two parts, 29490 and 613, that added together give a palindrome (30103).

The spelling of 29490613 in words is "twenty-nine million, four hundred ninety thousand, six hundred thirteen".

Divisors: 1 73 403981 29490613