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29380690 = 252938069
BaseRepresentation
bin111000000010…
…1000001010010
32001021200201201
41300011001102
530010140230
62525421414
7504505663
oct160050122
961250651
1029380690
1115648169
129a0a86a
136119131
143c8b36a
1528a55ca
hex1c05052

29380690 has 8 divisors (see below), whose sum is σ = 52885260. Its totient is φ = 11752272.

The previous prime is 29380679. The next prime is 29380691. The reversal of 29380690 is 9608392.

It can be written as a sum of positive squares in 2 ways, for example, as 29365561 + 15129 = 5419^2 + 123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×293806902 = 1726449889752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29380691) 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, 1469025 + ... + 1469044.

Almost surely, 229380690 is an apocalyptic number.

29380690 is a deficient number, since it is larger than the sum of its proper divisors (23504570).

29380690 is a wasteful number, since it uses less digits than its factorization.

29380690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938076.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 29380690 is about 5420.3957420100. The cubic root of 29380690 is about 308.5702106352.

The spelling of 29380690 in words is "twenty-nine million, three hundred eighty thousand, six hundred ninety".

Divisors: 1 2 5 10 2938069 5876138 14690345 29380690