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28196030 = 2517612719
BaseRepresentation
bin110101110001…
…1110010111110
31222001111200102
41223203302332
524204233110
62444201102
7461443112
oct153436276
958044612
1028196030
1114a09105
129539192
135ac2b55
143a5d742
15271e5a5
hex1ae3cbe

28196030 has 32 divisors (see below), whose sum is σ = 54639360. Its totient is φ = 10437120.

The previous prime is 28196027. The next prime is 28196087. The reversal of 28196030 is 3069182.

It is a super-2 number, since 2×281960302 = 1590032215521800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28195984 and 28196002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9011 + ... + 11729.

It is an arithmetic number, because the mean of its divisors is an integer number (1707480).

Almost surely, 228196030 is an apocalyptic number.

28196030 is a deficient number, since it is larger than the sum of its proper divisors (26443330).

28196030 is a wasteful number, since it uses less digits than its factorization.

28196030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 28196030 is about 5309.9934086588. The cubic root of 28196030 is about 304.3658957062.

The spelling of 28196030 in words is "twenty-eight million, one hundred ninety-six thousand, thirty".

Divisors: 1 2 5 10 17 34 61 85 122 170 305 610 1037 2074 2719 5185 5438 10370 13595 27190 46223 92446 165859 231115 331718 462230 829295 1658590 2819603 5639206 14098015 28196030