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28192629 = 335926177
BaseRepresentation
bin110101110001…
…0111101110101
31222001100000110
41223202331311
524204131004
62444133233
7461430153
oct153427565
958040013
1028192629
1114a065a3
129537219
135ac143a
143a5c3d3
15271d589
hex1ae2f75

28192629 has 8 divisors (see below), whose sum is σ = 37696320. Its totient is φ = 18742016.

The previous prime is 28192627. The next prime is 28192639. The reversal of 28192629 is 92629182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28192629 - 21 = 28192627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28192627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12012 + ... + 14165.

It is an arithmetic number, because the mean of its divisors is an integer number (4712040).

Almost surely, 228192629 is an apocalyptic number.

It is an amenable number.

28192629 is a deficient number, since it is larger than the sum of its proper divisors (9503691).

28192629 is a wasteful number, since it uses less digits than its factorization.

28192629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26539.

The product of its digits is 31104, while the sum is 39.

The square root of 28192629 is about 5309.6731537826. The cubic root of 28192629 is about 304.3536576945.

The spelling of 28192629 in words is "twenty-eight million, one hundred ninety-two thousand, six hundred twenty-nine".

Divisors: 1 3 359 1077 26177 78531 9397543 28192629