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28761076 = 2217479883
BaseRepresentation
bin110110110110…
…1101111110100
32000010012210001
41231231233310
524330323301
62504241044
7466315351
oct155555764
960105701
1028761076
1115264693
129770184
135c600b6
143b69628
1527d1c01
hex1b6dbf4

28761076 has 24 divisors (see below), whose sum is σ = 53464320. Its totient is φ = 13491072.

The previous prime is 28761071. The next prime is 28761101. The reversal of 28761076 is 67016782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28761071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32131 + ... + 33013.

It is an arithmetic number, because the mean of its divisors is an integer number (2227680).

Almost surely, 228761076 is an apocalyptic number.

It is an amenable number.

28761076 is a deficient number, since it is larger than the sum of its proper divisors (24703244).

28761076 is a wasteful number, since it uses less digits than its factorization.

28761076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 28761076 is about 5362.9353902504. The cubic root of 28761076 is about 306.3856189011.

The spelling of 28761076 in words is "twenty-eight million, seven hundred sixty-one thousand, seventy-six".

Divisors: 1 2 4 17 34 68 479 883 958 1766 1916 3532 8143 15011 16286 30022 32572 60044 422957 845914 1691828 7190269 14380538 28761076