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18055416148 = 22711229255989
BaseRepresentation
bin10000110100001011…
…111100100101010100
31201121022110011200121
4100310023330211110
5243434141304043
612143342121324
71206300335140
oct206413744524
951538404617
1018055416148
1177258a2430
1235ba880244
131919863cc3
14c33d34220
1570a1a2ded
hex4342fc954

18055416148 has 48 divisors (see below), whose sum is σ = 39565814400. Its totient is φ = 7003831680.

The previous prime is 18055416143. The next prime is 18055416163. The reversal of 18055416148 is 84161455081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18055416143) 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, 57463 + ... + 198526.

It is an arithmetic number, because the mean of its divisors is an integer number (824287800).

Almost surely, 218055416148 is an apocalyptic number.

It is an amenable number.

18055416148 is an abundant number, since it is smaller than the sum of its proper divisors (21510398252).

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

18055416148 is a wasteful number, since it uses less digits than its factorization.

18055416148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256240 (or 256238 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 43.

The spelling of 18055416148 in words is "eighteen billion, fifty-five million, four hundred sixteen thousand, one hundred forty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 229 308 458 916 1603 2519 3206 5038 6412 10076 17633 35266 70532 255989 511978 1023956 1791923 2815879 3583846 5631758 7167692 11263516 19711153 39422306 58621481 78844612 117242962 234485924 410350367 644836291 820700734 1289672582 1641401468 2579345164 4513854037 9027708074 18055416148