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29680349 = 201114759
BaseRepresentation
bin111000100111…
…0001011011101
32001211220210012
41301032023131
530044232344
62540053005
7510164426
oct161161335
961756705
1029680349
1115832316
129b34165
1361c264a
143d2864d
15291429e
hex1c4e2dd

29680349 has 4 divisors (see below), whose sum is σ = 29697120. Its totient is φ = 29663580.

The previous prime is 29680333. The next prime is 29680403. The reversal of 29680349 is 94308692.

It is a happy number.

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 29680349 - 24 = 29680333 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 (29680309) 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, 5369 + ... + 9390.

It is an arithmetic number, because the mean of its divisors is an integer number (7424280).

Almost surely, 229680349 is an apocalyptic number.

It is an amenable number.

29680349 is a deficient number, since it is larger than the sum of its proper divisors (16771).

29680349 is a wasteful number, since it uses less digits than its factorization.

29680349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16770.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 29680349 is about 5447.9674191390. The cubic root of 29680349 is about 309.6157187712.

The spelling of 29680349 in words is "twenty-nine million, six hundred eighty thousand, three hundred forty-nine".

Divisors: 1 2011 14759 29680349