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102303514237 = 254340229459
BaseRepresentation
bin101111101000111000…
…0111011111001111101
3100210001201002222201211
41133101300323321331
53134004144423422
6114555251204421
710251114344311
oct1372160737175
9323051088654
10102303514237
113a428737481
12179b12a6711
139854b15312
144d46d65b41
1529db5a2577
hex17d1c3be7d

102303514237 has 4 divisors (see below), whose sum is σ = 102343746240. Its totient is φ = 102263282236.

The previous prime is 102303514193. The next prime is 102303514279. The reversal of 102303514237 is 732415303201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 732415303201 = 2572849864993.

It is a cyclic number.

It is not a de Polignac number, because 102303514237 - 27 = 102303514109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102303514199 and 102303514208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102303514637) 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, 20112187 + ... + 20117272.

It is an arithmetic number, because the mean of its divisors is an integer number (25585936560).

Almost surely, 2102303514237 is an apocalyptic number.

It is an amenable number.

102303514237 is a deficient number, since it is larger than the sum of its proper divisors (40232003).

102303514237 is an equidigital number, since it uses as much as digits as its factorization.

102303514237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40232002.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 102303514237 its reverse (732415303201), we get a palindrome (834718817438).

The spelling of 102303514237 in words is "one hundred two billion, three hundred three million, five hundred fourteen thousand, two hundred thirty-seven".

Divisors: 1 2543 40229459 102303514237