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102114090 = 23251387277
BaseRepresentation
bin1100001011000…
…10001100101010
321010010221012100
412011202030222
5202120122330
614044354230
72346645501
oct605421452
9233127170
10102114090
1152705911
122a245976
1318203b50
14d7c1838
158e71060
hex616232a

102114090 has 48 divisors (see below), whose sum is σ = 285922728. Its totient is φ = 25135488.

The previous prime is 102114029. The next prime is 102114091. The reversal of 102114090 is 90411201.

It can be written as a sum of positive squares in 4 ways, for example, as 89132481 + 12981609 = 9441^2 + 3603^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102114091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42469 + ... + 44808.

Almost surely, 2102114090 is an apocalyptic number.

102114090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102114090 is an abundant number, since it is smaller than the sum of its proper divisors (183808638).

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

102114090 is a wasteful number, since it uses less digits than its factorization.

102114090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87303 (or 87300 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 102114090 is about 10105.1516564572. The cubic root of 102114090 is about 467.4070124950.

Adding to 102114090 its reverse (90411201), we get a palindrome (192525291).

The spelling of 102114090 in words is "one hundred two million, one hundred fourteen thousand, ninety".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 585 1170 87277 174554 261831 436385 523662 785493 872770 1134601 1309155 1570986 2269202 2618310 3403803 3927465 5673005 6807606 7854930 10211409 11346010 17019015 20422818 34038030 51057045 102114090