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168238080 = 2103351217
BaseRepresentation
bin10100000011100…
…01110000000000
3102201120101021000
422001301300000
5321032104310
624405532000
74112000013
oct1201616000
9381511230
10168238080
1186a6983a
1248414000
1328b1637a
14184b537a
15eb834c0
hexa071c00

168238080 has 176 divisors, whose sum is σ = 598379040. Its totient is φ = 44826624.

The previous prime is 168238079. The next prime is 168238093. The reversal of 168238080 is 80832861.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137632 + ... + 138848.

Almost surely, 2168238080 is an apocalyptic number.

168238080 is a gapful number since it is divisible by the number (10) 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 168238080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299189520).

168238080 is an abundant number, since it is smaller than the sum of its proper divisors (430140960).

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

168238080 is a wasteful number, since it uses less digits than its factorization.

168238080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 168238080 is about 12970.6622807010. The cubic root of 168238080 is about 552.0453648917.

The spelling of 168238080 in words is "one hundred sixty-eight million, two hundred thirty-eight thousand, eighty".