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102030342277 = 143970903643
BaseRepresentation
bin101111100000101111…
…0110111100010000101
3100202100200002102020211
41133001132313202011
53132424231423102
6114512212155421
710241256412513
oct1370136674205
9322320072224
10102030342277
113a2a8517326
1217935908b71
13981034b7c6
144d1c9774b3
1529c25e27d7
hex17c17b7885

102030342277 has 4 divisors (see below), whose sum is σ = 102101247360. Its totient is φ = 101959437196.

The previous prime is 102030342269. The next prime is 102030342301. The reversal of 102030342277 is 772243030201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102030342277 - 23 = 102030342269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030342217) 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, 35450383 + ... + 35453260.

It is an arithmetic number, because the mean of its divisors is an integer number (25525311840).

Almost surely, 2102030342277 is an apocalyptic number.

It is an amenable number.

102030342277 is a deficient number, since it is larger than the sum of its proper divisors (70905083).

102030342277 is an equidigital number, since it uses as much as digits as its factorization.

102030342277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70905082.

The product of its (nonzero) digits is 14112, while the sum is 31.

Adding to 102030342277 its reverse (772243030201), we get a palindrome (874273372478).

The spelling of 102030342277 in words is "one hundred two billion, thirty million, three hundred forty-two thousand, two hundred seventy-seven".

Divisors: 1 1439 70903643 102030342277