Search a number
-
+
29730619 = 157409463
BaseRepresentation
bin111000101101…
…0011100111011
32001221110202001
41301122130323
530102334434
62541121431
7510464122
oct161323473
961843661
1029730619
1115867066
129b59277
13620c4a9
143d3cab9
152924114
hex1c5a73b

29730619 has 8 divisors (see below), whose sum is σ = 30057920. Its totient is φ = 29405376.

The previous prime is 29730601. The next prime is 29730629. The reversal of 29730619 is 91603792.

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

It is a cyclic number.

It is not a de Polignac number, because 29730619 - 217 = 29599547 is a prime.

It is a super-2 number, since 2×297306192 = 1767819412246322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29730629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63982 + ... + 64444.

It is an arithmetic number, because the mean of its divisors is an integer number (3757240).

Almost surely, 229730619 is an apocalyptic number.

29730619 is a deficient number, since it is larger than the sum of its proper divisors (327301).

29730619 is a wasteful number, since it uses less digits than its factorization.

29730619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 29730619 is about 5452.5791145109. The cubic root of 29730619 is about 309.7904202573.

The spelling of 29730619 in words is "twenty-nine million, seven hundred thirty thousand, six hundred nineteen".

Divisors: 1 157 409 463 64213 72691 189367 29730619