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28862164 = 22101199359
BaseRepresentation
bin110111000011…
…0011011010100
32000022100110001
41232012123110
524342042124
62510341044
7500216152
oct156063324
960270401
1028862164
1115323631
1297ba784
135c97106
143b943d2
152801b44
hex1b866d4

28862164 has 24 divisors (see below), whose sum is σ = 51408000. Its totient is φ = 14176800.

The previous prime is 28862161. The next prime is 28862167. The reversal of 28862164 is 46126882.

It is an interprime number because it is at equal distance from previous prime (28862161) and next prime (28862167).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28862161) 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 7 ways as a sum of consecutive naturals, for example, 80217 + ... + 80575.

It is an arithmetic number, because the mean of its divisors is an integer number (2142000).

Almost surely, 228862164 is an apocalyptic number.

28862164 is the 2872-nd nonagonal number.

It is an amenable number.

28862164 is a deficient number, since it is larger than the sum of its proper divisors (22545836).

28862164 is a wasteful number, since it uses less digits than its factorization.

28862164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 661 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 28862164 is about 5372.3518127539. The cubic root of 28862164 is about 306.7441554867.

It can be divided in two parts, 2886 and 2164, that added together give a triangular number (5050 = T100).

The spelling of 28862164 in words is "twenty-eight million, eight hundred sixty-two thousand, one hundred sixty-four".

Divisors: 1 2 4 101 199 202 359 398 404 718 796 1436 20099 36259 40198 71441 72518 80396 142882 145036 285764 7215541 14431082 28862164