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21075334 = 271505381
BaseRepresentation
bin101000001100…
…1010110000110
31110122201220221
41100121112012
520343402314
62031414554
7344065060
oct120312606
943581827
1021075334
1110995235
12708445a
13449ba17
142b28730
151cb4824
hex1419586

21075334 has 8 divisors (see below), whose sum is σ = 36129168. Its totient is φ = 9032280.

The previous prime is 21075283. The next prime is 21075347. The reversal of 21075334 is 43357012.

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

It is a junction number, because it is equal to n+sod(n) for n = 21075299 and 21075308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752677 + ... + 752704.

It is an arithmetic number, because the mean of its divisors is an integer number (4516146).

Almost surely, 221075334 is an apocalyptic number.

21075334 is a deficient number, since it is larger than the sum of its proper divisors (15053834).

21075334 is a wasteful number, since it uses less digits than its factorization.

21075334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505390.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 21075334 is about 4590.7879497969. The cubic root of 21075334 is about 276.2219299502.

The spelling of 21075334 in words is "twenty-one million, seventy-five thousand, three hundred thirty-four".

Divisors: 1 2 7 14 1505381 3010762 10537667 21075334