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102097535281 = 724874278487
BaseRepresentation
bin101111100010101111…
…1001100000100110001
3100202112100112011201121
41133011133030010301
53133043432112111
6114523012302241
710243033505500
oct1370537140461
9322470464647
10102097535281
113a332440435
1217954311981
139821246791
144d27868837
1529c8466871
hex17c57cc131

102097535281 has 12 divisors (see below), whose sum is σ = 119010422208. Its totient is φ = 87332456232.

The previous prime is 102097535257. The next prime is 102097535297. The reversal of 102097535281 is 182535790201.

It is a happy number.

It is not a de Polignac number, because 102097535281 - 27 = 102097535153 is a prime.

It is a super-2 number, since 2×1020975352812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102097535081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2115381 + ... + 2163106.

It is an arithmetic number, because the mean of its divisors is an integer number (9917535184).

Almost surely, 2102097535281 is an apocalyptic number.

It is an amenable number.

102097535281 is a deficient number, since it is larger than the sum of its proper divisors (16912886927).

102097535281 is an equidigital number, since it uses as much as digits as its factorization.

102097535281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278988 (or 4278981 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 102097535281 in words is "one hundred two billion, ninety-seven million, five hundred thirty-five thousand, two hundred eighty-one".

Divisors: 1 7 49 487 3409 23863 4278487 29949409 209645863 2083623169 14585362183 102097535281