Search a number
-
+
33480487 = 229146203
BaseRepresentation
bin111111110110…
…1111100100111
32022222222121001
41333231330213
532032333422
63153334131
7554402515
oct177557447
968888531
1033480487
1117998427
12b267347
136c23251
1446374b5
152e15227
hex1fedf27

33480487 has 4 divisors (see below), whose sum is σ = 33626920. Its totient is φ = 33334056.

The previous prime is 33480467. The next prime is 33480509. The reversal of 33480487 is 78408433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78408433 = 551914207.

It is a cyclic number.

It is not a de Polignac number, because 33480487 - 211 = 33478439 is a prime.

It is a super-2 number, since 2×334804872 = 2241886019514338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33480467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72873 + ... + 73330.

It is an arithmetic number, because the mean of its divisors is an integer number (8406730).

Almost surely, 233480487 is an apocalyptic number.

33480487 is a deficient number, since it is larger than the sum of its proper divisors (146433).

33480487 is a wasteful number, since it uses less digits than its factorization.

33480487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146432.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 33480487 is about 5786.2325393990. The cubic root of 33480487 is about 322.3026840196.

The spelling of 33480487 in words is "thirty-three million, four hundred eighty thousand, four hundred eighty-seven".

Divisors: 1 229 146203 33480487