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18106481088 = 2632243712899
BaseRepresentation
bin10000110111001110…
…101111100111000000
31201201212112112121200
4100313032233213000
5244040224343323
612152404421200
71210460356413
oct206716574700
951655475550
1018106481088
117751700263
1236139a7800
131927303047
14c3aa27b7a
1570e8dd443
hex4373af9c0

18106481088 has 84 divisors (see below), whose sum is σ = 51924280200. Its totient is φ = 6032549376.

The previous prime is 18106481083. The next prime is 18106481101. The reversal of 18106481088 is 88018460181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106481083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1397263 + ... + 1410161.

Almost surely, 218106481088 is an apocalyptic number.

18106481088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18106481088 is an abundant number, since it is smaller than the sum of its proper divisors (33817799112).

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

18106481088 is a wasteful number, since it uses less digits than its factorization.

18106481088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15354 (or 15341 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 45.

The spelling of 18106481088 in words is "eighteen billion, one hundred six million, four hundred eighty-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 2437 4874 7311 9748 12899 14622 19496 21933 25798 29244 38697 38992 43866 51596 58488 77394 77984 87732 103192 116091 116976 154788 155968 175464 206384 232182 233952 309576 350928 412768 464364 467904 619152 701856 825536 928728 1238304 1403712 1857456 2476608 3714912 7429824 31434863 62869726 94304589 125739452 188609178 251478904 282913767 377218356 502957808 565827534 754436712 1005915616 1131655068 1508873424 2011831232 2263310136 3017746848 4526620272 6035493696 9053240544 18106481088