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28829757 = 3112813109
BaseRepresentation
bin110110111111…
…0100000111101
32000020200222210
41231332200331
524340023012
62505531033
7500022525
oct155764075
960220883
1028829757
1115301250
1297a3a79
135c85438
143b86685
1527e723c
hex1b7e83d

28829757 has 16 divisors (see below), whose sum is σ = 42096960. Its totient is φ = 17404800.

The previous prime is 28829747. The next prime is 28829767. The reversal of 28829757 is 75792882.

28829757 is nontrivially palindromic in base 12.

It is an interprime number because it is at equal distance from previous prime (28829747) and next prime (28829767).

It is not a de Polignac number, because 28829757 - 27 = 28829629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28829747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7719 + ... + 10827.

It is an arithmetic number, because the mean of its divisors is an integer number (2631060).

Almost surely, 228829757 is an apocalyptic number.

It is an amenable number.

28829757 is a deficient number, since it is larger than the sum of its proper divisors (13267203).

28829757 is a wasteful number, since it uses less digits than its factorization.

28829757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404.

The product of its digits is 564480, while the sum is 48.

The square root of 28829757 is about 5369.3348750101. The cubic root of 28829757 is about 306.6293063865.

The spelling of 28829757 in words is "twenty-eight million, eight hundred twenty-nine thousand, seven hundred fifty-seven".

Divisors: 1 3 11 33 281 843 3091 3109 9273 9327 34199 102597 873629 2620887 9609919 28829757