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102530671243 = 71113263389461
BaseRepresentation
bin101111101111101001…
…1011110001010001011
3100210122112112202120021
41133133103132022023
53134440322434433
6115034004041311
710256543216530
oct1373723361213
9323575482507
10102530671243
113a534988940
1217a55393237
13988cbba550
144d691b6d87
152a014c322d
hex17df4de28b

102530671243 has 32 divisors (see below), whose sum is σ = 138187348992. Its totient is φ = 73467734400.

The previous prime is 102530671237. The next prime is 102530671253. The reversal of 102530671243 is 342176035201.

It is a cyclic number.

It is not a de Polignac number, because 102530671243 - 29 = 102530670731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102530671199 and 102530671208.

It is not an unprimeable number, because it can be changed into a prime (102530671253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68533 + ... + 457993.

It is an arithmetic number, because the mean of its divisors is an integer number (4318354656).

Almost surely, 2102530671243 is an apocalyptic number.

102530671243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102530671243 is a deficient number, since it is larger than the sum of its proper divisors (35656677749).

102530671243 is a wasteful number, since it uses less digits than its factorization.

102530671243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389755.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 102530671243 in words is "one hundred two billion, five hundred thirty million, six hundred seventy-one thousand, two hundred forty-three".

Divisors: 1 7 11 13 77 91 143 263 1001 1841 2893 3419 20251 23933 37609 263263 389461 2726227 4284071 5062993 29988497 35440951 55692923 102428243 389850461 716997701 1126710673 1331567159 7886974711 9320970113 14647238749 102530671243