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168387387084 = 223371132517853
BaseRepresentation
bin1001110011010010101…
…0111001111011001100
3121002122012120120002000
42130310222321323030
510224324132341314
6205204530032300
715110540113530
oct2346452717314
9532565516060
10168387387084
116545a321224
1228774718690
1312b56b26367
14821581bbc0
1545a7ea9209
hex2734ab9ecc

168387387084 has 192 divisors, whose sum is σ = 505410554880. Its totient is φ = 47488896000.

The previous prime is 168387387073. The next prime is 168387387101. The reversal of 168387387084 is 480783783861.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21438502 + ... + 21446354.

It is an arithmetic number, because the mean of its divisors is an integer number (2632346640).

Almost surely, 2168387387084 is an apocalyptic number.

168387387084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168387387084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252705277440).

168387387084 is an abundant number, since it is smaller than the sum of its proper divisors (337023167796).

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

168387387084 is a wasteful number, since it uses less digits than its factorization.

168387387084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8237 (or 8229 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 63.

The spelling of 168387387084 in words is "one hundred sixty-eight billion, three hundred eighty-seven million, three hundred eighty-seven thousand, eighty-four".