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164872950 = 23521199923
BaseRepresentation
bin10011101001111…
…00001011110110
3102111020102011120
421310330023312
5314201413300
624205444410
74041253104
oct1164741366
9374212146
10164872950
1185080540
1247270706
1328208778
1417c7ac74
15e71b3a0
hex9d3c2f6

164872950 has 48 divisors (see below), whose sum is σ = 446060736. Its totient is φ = 39968800.

The previous prime is 164872927. The next prime is 164872951. The reversal of 164872950 is 59278461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164872951) 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, 48312 + ... + 51611.

It is an arithmetic number, because the mean of its divisors is an integer number (9292932).

Almost surely, 2164872950 is an apocalyptic number.

164872950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164872950 is an abundant number, since it is smaller than the sum of its proper divisors (281187786).

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

164872950 is a wasteful number, since it uses less digits than its factorization.

164872950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99949 (or 99944 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 164872950 is about 12840.2862117633. The cubic root of 164872950 is about 548.3398423936.

The spelling of 164872950 in words is "one hundred sixty-four million, eight hundred seventy-two thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 10 11 15 22 25 30 33 50 55 66 75 110 150 165 275 330 550 825 1650 99923 199846 299769 499615 599538 999230 1099153 1498845 2198306 2498075 2997690 3297459 4996150 5495765 6594918 7494225 10991530 14988450 16487295 27478825 32974590 54957650 82436475 164872950