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102454513055 = 520490902611
BaseRepresentation
bin101111101101011000…
…0111100110110011111
3100210110020020112011122
41133122300330312133
53134311323404210
6115022243441155
710254626664146
oct1373260746637
9323406215148
10102454513055
113a4a59a1094
1217a339861bb
13987a1a3a2b
144d5d03075d
1529e997cb55
hex17dac3cd9f

102454513055 has 4 divisors (see below), whose sum is σ = 122945415672. Its totient is φ = 81963610440.

The previous prime is 102454513013. The next prime is 102454513103. The reversal of 102454513055 is 550315454201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102454513055 - 210 = 102454512031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10245451301 + ... + 10245451310.

It is an arithmetic number, because the mean of its divisors is an integer number (30736353918).

Almost surely, 2102454513055 is an apocalyptic number.

102454513055 is a deficient number, since it is larger than the sum of its proper divisors (20490902617).

102454513055 is an equidigital number, since it uses as much as digits as its factorization.

102454513055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20490902616.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 102454513055 its reverse (550315454201), we get a palindrome (652769967256).

The spelling of 102454513055 in words is "one hundred two billion, four hundred fifty-four million, five hundred thirteen thousand, fifty-five".

Divisors: 1 5 20490902611 102454513055