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18748501014 = 2323285147653
BaseRepresentation
bin10001011101011111…
…110110110000010110
31210101121121112101110
4101131133312300112
5301344104013024
612340221235450
71232414425545
oct213537666026
953347545343
1018748501014
117a51049341
123772a02b86
1319ca3219a9
14c9bdcc15c
1574ae5b629
hex45d7f6c16

18748501014 has 32 divisors (see below), whose sum is σ = 39141851904. Its totient is φ = 5975560800.

The previous prime is 18748501003. The next prime is 18748501021. The reversal of 18748501014 is 41010584781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369612 + ... + 417264.

It is an arithmetic number, because the mean of its divisors is an integer number (1223182872).

Almost surely, 218748501014 is an apocalyptic number.

18748501014 is an abundant number, since it is smaller than the sum of its proper divisors (20393350890).

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

18748501014 is a wasteful number, since it uses less digits than its factorization.

18748501014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50532.

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 18748501014 in words is "eighteen billion, seven hundred forty-eight million, five hundred one thousand, fourteen".

Divisors: 1 2 3 6 23 46 69 138 2851 5702 8553 17106 47653 65573 95306 131146 142959 196719 285918 393438 1096019 2192038 3288057 6576114 135858703 271717406 407576109 815152218 3124750169 6249500338 9374250507 18748501014