Search a number
-
+
15980434 = 243185819
BaseRepresentation
bin111100111101…
…011110010010
31010001220000221
4330331132102
513042333214
61330303254
7252555121
oct74753622
933056027
1015980434
119025378
125427b2a
1334069a2
14219dab8
151609e24
hexf3d792

15980434 has 8 divisors (see below), whose sum is σ = 24528240. Its totient is φ = 7804356.

The previous prime is 15980431. The next prime is 15980449. The reversal of 15980434 is 43408951.

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

It is a self number, because there is not a number n which added to its sum of digits gives 15980434.

It is not an unprimeable number, because it can be changed into a prime (15980431) 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, 92824 + ... + 92995.

It is an arithmetic number, because the mean of its divisors is an integer number (3066030).

Almost surely, 215980434 is an apocalyptic number.

15980434 is a deficient number, since it is larger than the sum of its proper divisors (8547806).

15980434 is a wasteful number, since it uses less digits than its factorization.

15980434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185864.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 15980434 is about 3997.5535018308. The cubic root of 15980434 is about 251.8814530177.

The spelling of 15980434 in words is "fifteen million, nine hundred eighty thousand, four hundred thirty-four".

Divisors: 1 2 43 86 185819 371638 7990217 15980434