Search a number
-
+
18014742864 = 2432491254791
BaseRepresentation
bin10000110001110000…
…110010100101010000
31201111110220202102200
4100301300302211100
5243343233232424
612135330243200
71205264534136
oct206160624520
951443822380
1018014742864
117704941a48
1235a9126500
1319112c2b81
14c2c787756
1570681b8c9
hex431c32950

18014742864 has 60 divisors (see below), whose sum is σ = 50519138592. Its totient is φ = 5992660800.

The previous prime is 18014742803. The next prime is 18014742901. The reversal of 18014742864 is 46824741081.

18014742864 is a `hidden beast` number, since 1 + 80 + 147 + 428 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56692 + ... + 198099.

Almost surely, 218014742864 is an apocalyptic number.

It is an amenable number.

18014742864 is an abundant number, since it is smaller than the sum of its proper divisors (32504395728).

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

18014742864 is a wasteful number, since it uses less digits than its factorization.

18014742864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255296 (or 255287 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 18014742864 in words is "eighteen billion, fourteen million, seven hundred forty-two thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 491 982 1473 1964 2946 3928 4419 5892 7856 8838 11784 17676 23568 35352 70704 254791 509582 764373 1019164 1528746 2038328 2293119 3057492 4076656 4586238 6114984 9172476 12229968 18344952 36689904 125102381 250204762 375307143 500409524 750614286 1000819048 1125921429 1501228572 2001638096 2251842858 3002457144 4503685716 6004914288 9007371432 18014742864