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18253775896 = 232638675749
BaseRepresentation
bin10001000000000000…
…101000010000011000
31202010010200220002221
4101000000220100120
5244340431312041
612215145433424
71214226351346
oct210000502030
952103626087
1018253775896
117817865004
12365519b874
13194b995835
14c5240a996
1571c7d62d1
hex440028418

18253775896 has 16 divisors (see below), whose sum is σ = 34355970000. Its totient is φ = 9092183904.

The previous prime is 18253775879. The next prime is 18253775899. The reversal of 18253775896 is 69857735281.

It is a super-2 number, since 2×182537758962 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18253775899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4335771 + ... + 4339978.

It is an arithmetic number, because the mean of its divisors is an integer number (2147248125).

Almost surely, 218253775896 is an apocalyptic number.

It is an amenable number.

18253775896 is a deficient number, since it is larger than the sum of its proper divisors (16102194104).

18253775896 is a wasteful number, since it uses less digits than its factorization.

18253775896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8676018 (or 8676014 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 61.

The spelling of 18253775896 in words is "eighteen billion, two hundred fifty-three million, seven hundred seventy-five thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 263 526 1052 2104 8675749 17351498 34702996 69405992 2281721987 4563443974 9126887948 18253775896