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18006492451304 = 2371719995493833
BaseRepresentation
bin1000001100000011101101…
…00101100001000111101000
32100202101220102022100120002
410012001312211201013220
54330004244031420204
6102144022440522132
73535632445316150
oct406016645410750
970671812270502
1018006492451304
115812568618a95
122029941a80348
13a0800ab59636
14463739b69760
152135cbd6791e
hex1060769611e8

18006492451304 has 64 divisors (see below), whose sum is σ = 43005333628800. Its totient is φ = 6880853366784.

The previous prime is 18006492451303. The next prime is 18006492451331. The reversal of 18006492451304 is 40315429460081.

It is a super-2 number, since 2×180064924513042 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18006492451303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497728829 + ... + 497765004.

It is an arithmetic number, because the mean of its divisors is an integer number (671958337950).

Almost surely, 218006492451304 is an apocalyptic number.

18006492451304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18006492451304 is an abundant number, since it is smaller than the sum of its proper divisors (24998841177496).

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

18006492451304 is a wasteful number, since it uses less digits than its factorization.

18006492451304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995493882 (or 995493878 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 18006492451304 in words is "eighteen trillion, six billion, four hundred ninety-two million, four hundred fifty-one thousand, three hundred four".

Divisors: 1 2 4 7 8 14 17 19 28 34 38 56 68 76 119 133 136 152 238 266 323 476 532 646 952 1064 1292 2261 2584 4522 9044 18088 995493833 1990987666 3981975332 6968456831 7963950664 13936913662 16923395161 18914382827 27873827324 33846790322 37828765654 55747654648 67693580644 75657531308 118463766127 132400679789 135387161288 151315062616 236927532254 264801359578 321544508059 473855064508 529602719156 643089016118 947710129016 1059205438312 1286178032236 2250811556413 2572356064472 4501623112826 9003246225652 18006492451304