Search a number
-
+
28377934 = 2131091459
BaseRepresentation
bin110110001000…
…0001101001110
31222101202012121
41230100031032
524231043214
62452123154
7463131334
oct154201516
958352177
1028377934
1115022842
1296064ba
135b578a0
143aa9b54
152758424
hex1b1034e

28377934 has 8 divisors (see below), whose sum is σ = 45841320. Its totient is φ = 13097496.

The previous prime is 28377911. The next prime is 28377941. The reversal of 28377934 is 43977382.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545704 + ... + 545755.

It is an arithmetic number, because the mean of its divisors is an integer number (5730165).

Almost surely, 228377934 is an apocalyptic number.

28377934 is a deficient number, since it is larger than the sum of its proper divisors (17463386).

28377934 is a wasteful number, since it uses less digits than its factorization.

28377934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091474.

The product of its digits is 254016, while the sum is 43.

The square root of 28377934 is about 5327.0943299326. The cubic root of 28377934 is about 305.0190223736.

The spelling of 28377934 in words is "twenty-eight million, three hundred seventy-seven thousand, nine hundred thirty-four".

Divisors: 1 2 13 26 1091459 2182918 14188967 28377934