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168230550 = 23521278831
BaseRepresentation
bin10100000011011…
…11111010010110
3102201112222221010
422001233322112
5321031334200
624405433050
74111636035
oct1201577226
9381488833
10168230550
1186a64114
124840b786
1328b12b07
14184b271c
15eb81150
hexa06fe96

168230550 has 48 divisors (see below), whose sum is σ = 420544512. Its totient is φ = 44503200.

The previous prime is 168230519. The next prime is 168230551. The reversal of 168230550 is 55032861.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168230551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14635 + ... + 23465.

It is an arithmetic number, because the mean of its divisors is an integer number (8761344).

Almost surely, 2168230550 is an apocalyptic number.

168230550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 168230550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210272256).

168230550 is an abundant number, since it is smaller than the sum of its proper divisors (252313962).

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

168230550 is a wasteful number, since it uses less digits than its factorization.

168230550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973 (or 8968 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 168230550 is about 12970.3720070012. The cubic root of 168230550 is about 552.0371286200.

The spelling of 168230550 in words is "one hundred sixty-eight million, two hundred thirty thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 127 150 254 381 635 762 1270 1905 3175 3810 6350 8831 9525 17662 19050 26493 44155 52986 88310 132465 220775 264930 441550 662325 1121537 1324650 2243074 3364611 5607685 6729222 11215370 16823055 28038425 33646110 56076850 84115275 168230550