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28419196 = 2213546523
BaseRepresentation
bin110110001101…
…0010001111100
31222110211210211
41230122101330
524233403241
62453042204
7463362541
oct154322174
958424724
1028419196
1115050843
129626364
135b705c0
143ababc8
152765781
hex1b1a47c

28419196 has 12 divisors (see below), whose sum is σ = 53559352. Its totient is φ = 13116528.

The previous prime is 28419187. The next prime is 28419197. The reversal of 28419196 is 69191482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28419197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273210 + ... + 273313.

Almost surely, 228419196 is an apocalyptic number.

28419196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28419196 is a deficient number, since it is larger than the sum of its proper divisors (25140156).

28419196 is a wasteful number, since it uses less digits than its factorization.

28419196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546540 (or 546538 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 28419196 is about 5330.9657661628. The cubic root of 28419196 is about 305.1667850670.

The spelling of 28419196 in words is "twenty-eight million, four hundred nineteen thousand, one hundred ninety-six".

Divisors: 1 2 4 13 26 52 546523 1093046 2186092 7104799 14209598 28419196