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28626936 = 2331391753
BaseRepresentation
bin110110100110…
…0111111111000
31222212101202220
41231030333320
524312030221
62501324040
7465216312
oct155147770
958771686
1028626936
1115182928
129706620
135c14020
143b327b2
1527a70c6
hex1b4cff8

28626936 has 32 divisors (see below), whose sum is σ = 77073360. Its totient is φ = 8808192.

The previous prime is 28626907. The next prime is 28626947. The reversal of 28626936 is 63962682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45565 + ... + 46188.

Almost surely, 228626936 is an apocalyptic number.

28626936 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28626936 is an abundant number, since it is smaller than the sum of its proper divisors (48446424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28626936 is a wasteful number, since it uses less digits than its factorization.

28626936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91775 (or 91771 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 28626936 is about 5350.4145633773. The cubic root of 28626936 is about 305.9085548445.

The spelling of 28626936 in words is "twenty-eight million, six hundred twenty-six thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 91753 183506 275259 367012 550518 734024 1101036 1192789 2202072 2385578 3578367 4771156 7156734 9542312 14313468 28626936