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27926628 = 22313716987
BaseRepresentation
bin110101010001…
…0000001100100
31221112211010120
41222202001210
524122123003
62434321540
7456241512
oct152420144
957484116
1027926628
1114844764
1294292b0
135a2a342
1439cd4b2
1526b9853
hex1aa2064

27926628 has 24 divisors (see below), whose sum is σ = 65641632. Its totient is φ = 9240384.

The previous prime is 27926621. The next prime is 27926653. The reversal of 27926628 is 82662972.

It is a self number, because there is not a number n which added to its sum of digits gives 27926628.

It is not an unprimeable number, because it can be changed into a prime (27926621) 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, 6850 + ... + 10137.

It is an arithmetic number, because the mean of its divisors is an integer number (2735068).

Almost surely, 227926628 is an apocalyptic number.

It is an amenable number.

27926628 is an abundant number, since it is smaller than the sum of its proper divisors (37715004).

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

27926628 is a wasteful number, since it uses less digits than its factorization.

27926628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17131 (or 17129 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 27926628 is about 5284.5650719809. The cubic root of 27926628 is about 303.3934263532.

The spelling of 27926628 in words is "twenty-seven million, nine hundred twenty-six thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 137 274 411 548 822 1644 16987 33974 50961 67948 101922 203844 2327219 4654438 6981657 9308876 13963314 27926628