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102015230 = 2586311821
BaseRepresentation
bin1100001010010…
…10000011111110
321002221220120212
412011022003332
5202103441410
614042312422
72346054332
oct605120376
9232856525
10102015230
1152648609
122a1b8712
131819ab55
14d7977c2
158e51b05
hex614a0fe

102015230 has 16 divisors (see below), whose sum is σ = 183855744. Its totient is φ = 40755360.

The previous prime is 102015229. The next prime is 102015247. The reversal of 102015230 is 32510201.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2720 + ... + 14540.

It is an arithmetic number, because the mean of its divisors is an integer number (11490984).

Almost surely, 2102015230 is an apocalyptic number.

102015230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102015230 is a deficient number, since it is larger than the sum of its proper divisors (81840514).

102015230 is a wasteful number, since it uses less digits than its factorization.

102015230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12691.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 102015230 is about 10100.2589075726. The cubic root of 102015230 is about 467.2561264385.

Adding to 102015230 its reverse (32510201), we get a palindrome (134525431).

The spelling of 102015230 in words is "one hundred two million, fifteen thousand, two hundred thirty".

Divisors: 1 2 5 10 863 1726 4315 8630 11821 23642 59105 118210 10201523 20403046 51007615 102015230