Search a number
-
+
18148623142 = 2132131327557
BaseRepresentation
bin10000111001101111…
…100000001100100110
31201211210211120122111
4100321233200030212
5244132021420032
612200511551234
71211511515506
oct207157401446
951753746574
1018148623142
117773474201
123625b2b51a
131932c69880
14c42477a06
15713464c47
hex439be0326

18148623142 has 16 divisors (see below), whose sum is σ = 29330853552. Its totient is φ = 8372331360.

The previous prime is 18148623127. The next prime is 18148623151. The reversal of 18148623142 is 24132684181.

It is a junction number, because it is equal to n+sod(n) for n = 18148623095 and 18148623104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108373 + ... + 219184.

It is an arithmetic number, because the mean of its divisors is an integer number (1833178347).

Almost surely, 218148623142 is an apocalyptic number.

18148623142 is a deficient number, since it is larger than the sum of its proper divisors (11182230410).

18148623142 is a wasteful number, since it uses less digits than its factorization.

18148623142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329703.

The product of its digits is 73728, while the sum is 40.

The spelling of 18148623142 in words is "eighteen billion, one hundred forty-eight million, six hundred twenty-three thousand, one hundred forty-two".

Divisors: 1 2 13 26 2131 4262 27703 55406 327557 655114 4258241 8516482 698023967 1396047934 9074311571 18148623142