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18293148052 = 224797303979
BaseRepresentation
bin10001000010010110…
…110100100110010100
31202012212210012112221
4101002112310212110
5244431021214202
612223113352124
71215215123104
oct210226644624
952185705487
1018293148052
117838006983
123666408644
131956b9c67a
14c57739204
15720eb2037
hex4425b4994

18293148052 has 12 divisors (see below), whose sum is σ = 32694137280. Its totient is φ = 8951965976.

The previous prime is 18293148011. The next prime is 18293148077. The reversal of 18293148052 is 25084139281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48651802 + ... + 48652177.

It is an arithmetic number, because the mean of its divisors is an integer number (2724511440).

Almost surely, 218293148052 is an apocalyptic number.

It is an amenable number.

18293148052 is a deficient number, since it is larger than the sum of its proper divisors (14400989228).

18293148052 is a wasteful number, since it uses less digits than its factorization.

18293148052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97304030 (or 97304028 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 18293148052 in words is "eighteen billion, two hundred ninety-three million, one hundred forty-eight thousand, fifty-two".

Divisors: 1 2 4 47 94 188 97303979 194607958 389215916 4573287013 9146574026 18293148052