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102242515144 = 23711215088919
BaseRepresentation
bin101111100111000100…
…0001111100011001000
3100202220110022220201011
41133032020033203020
53133343040441034
6114545231533304
710246444016350
oct1371610174310
9322813286634
10102242515144
113a3a7263a00
121799498a234
1398452a8693
144d3cc07b60
1529d6053864
hex17ce20f8c8

102242515144 has 48 divisors (see below), whose sum is σ = 240819163200. Its totient is φ = 39834743520.

The previous prime is 102242515093. The next prime is 102242515153. The reversal of 102242515144 is 441515242201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7537684 + ... + 7551235.

It is an arithmetic number, because the mean of its divisors is an integer number (5017065900).

Almost surely, 2102242515144 is an apocalyptic number.

102242515144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102242515144 is an abundant number, since it is smaller than the sum of its proper divisors (138576648056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102242515144 is a wasteful number, since it uses less digits than its factorization.

102242515144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15088954 (or 15088939 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 102242515144 its reverse (441515242201), we get a palindrome (543757757345).

The spelling of 102242515144 in words is "one hundred two billion, two hundred forty-two million, five hundred fifteen thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 121 154 242 308 484 616 847 968 1694 3388 6776 15088919 30177838 60355676 105622433 120711352 165978109 211244866 331956218 422489732 663912436 844979464 1161846763 1327824872 1825759199 2323693526 3651518398 4647387052 7303036796 9294774104 12780314393 14606073592 25560628786 51121257572 102242515144