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102189068 = 22191344593
BaseRepresentation
bin1100001011101…
…00100000001100
321010021202001022
412011310200030
5202130022233
614050133312
72350410212
oct605644014
9233252038
10102189068
1152757183
122a281238
131822c007
14d800cb2
158e88398
hex617480c

102189068 has 12 divisors (see below), whose sum is σ = 188243160. Its totient is φ = 48405312.

The previous prime is 102189067. The next prime is 102189077. The reversal of 102189068 is 860981201.

It is not an unprimeable number, because it can be changed into a prime (102189067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672221 + ... + 672372.

It is an arithmetic number, because the mean of its divisors is an integer number (15686930).

Almost surely, 2102189068 is an apocalyptic number.

It is an amenable number.

102189068 is a deficient number, since it is larger than the sum of its proper divisors (86054092).

102189068 is a wasteful number, since it uses less digits than its factorization.

102189068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344616 (or 1344614 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 102189068 is about 10108.8608655971. The cubic root of 102189068 is about 467.5213834862.

The spelling of 102189068 in words is "one hundred two million, one hundred eighty-nine thousand, sixty-eight".

Divisors: 1 2 4 19 38 76 1344593 2689186 5378372 25547267 51094534 102189068