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168074620 = 22572514783
BaseRepresentation
bin10100000010010…
…01110101111100
3102201021002000221
422001021311330
5321011341440
624402231124
74110416320
oct1201116574
9381232027
10168074620
1186967a4a
12483554a4
1328a89b4c
1418471980
15eb4ed4a
hexa049d7c

168074620 has 48 divisors (see below), whose sum is σ = 405070848. Its totient is φ = 57384000.

The previous prime is 168074617. The next prime is 168074681. The reversal of 168074620 is 26470861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32749 + ... + 37531.

It is an arithmetic number, because the mean of its divisors is an integer number (8438976).

Almost surely, 2168074620 is an apocalyptic number.

168074620 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 168074620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202535424).

168074620 is an abundant number, since it is smaller than the sum of its proper divisors (236996228).

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

168074620 is a wasteful number, since it uses less digits than its factorization.

168074620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050 (or 5048 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 168074620 is about 12964.3596062436. The cubic root of 168074620 is about 551.8665179942.

The spelling of 168074620 in words is "one hundred sixty-eight million, seventy-four thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 251 502 1004 1255 1757 2510 3514 4783 5020 7028 8785 9566 17570 19132 23915 33481 35140 47830 66962 95660 133924 167405 334810 669620 1200533 2401066 4802132 6002665 8403731 12005330 16807462 24010660 33614924 42018655 84037310 168074620