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168338501852 = 22173243263731
BaseRepresentation
bin1001110011000111000…
…0011011000011011100
3121002111210120221010212
42130301300123003130
510224224124024402
6205200022151552
715106404441143
oct2346160330334
9532453527125
10168338501852
1165434772004
12287602825b8
1312b4996b4a1
14820d13475a
1545a3a4e952
hex2731c1b0dc

168338501852 has 12 divisors (see below), whose sum is σ = 296295225576. Its totient is φ = 83682723120.

The previous prime is 168338501833. The next prime is 168338501857. The reversal of 168338501852 is 258105833861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 168338501852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168338501857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121631174 + ... + 121632557.

It is an arithmetic number, because the mean of its divisors is an integer number (24691268798).

Almost surely, 2168338501852 is an apocalyptic number.

It is an amenable number.

168338501852 is a deficient number, since it is larger than the sum of its proper divisors (127956723724).

168338501852 is a wasteful number, since it uses less digits than its factorization.

168338501852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243263908 (or 243263906 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 168338501852 in words is "one hundred sixty-eight billion, three hundred thirty-eight million, five hundred one thousand, eight hundred fifty-two".

Divisors: 1 2 4 173 346 692 243263731 486527462 973054924 42084625463 84169250926 168338501852