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28602429 = 3193116187
BaseRepresentation
bin110110100011…
…1000000111101
31222211011011020
41231013000331
524310234204
62501014353
7465055002
oct155070075
958734136
1028602429
1115166479
1296b43b9
135c05b1b
143b278a9
15279ebd9
hex1b4703d

28602429 has 16 divisors (see below), whose sum is σ = 41441280. Its totient is φ = 17480880.

The previous prime is 28602401. The next prime is 28602437. The reversal of 28602429 is 92420682.

It is not a de Polignac number, because 28602429 - 25 = 28602397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28602429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28602499) 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 15 ways as a sum of consecutive naturals, for example, 6327 + ... + 9860.

It is an arithmetic number, because the mean of its divisors is an integer number (2590080).

Almost surely, 228602429 is an apocalyptic number.

It is an amenable number.

28602429 is a deficient number, since it is larger than the sum of its proper divisors (12838851).

28602429 is a wasteful number, since it uses less digits than its factorization.

28602429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16240.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28602429 is about 5348.1238766506. The cubic root of 28602429 is about 305.8212356696.

The spelling of 28602429 in words is "twenty-eight million, six hundred two thousand, four hundred twenty-nine".

Divisors: 1 3 19 31 57 93 589 1767 16187 48561 307553 501797 922659 1505391 9534143 28602429