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164419850 = 25272997167
BaseRepresentation
bin10011100110011…
…01100100001010
3102110101101122002
421303031210022
5314042413400
624152031002
74034355110
oct1163154412
9373341562
10164419850
11848a1081
1247092462
13280aa46a
1417b9dab0
15e67bed5
hex9ccd90a

164419850 has 96 divisors (see below), whose sum is σ = 367476480. Its totient is φ = 53544960.

The previous prime is 164419837. The next prime is 164419873. The reversal of 164419850 is 58914461.

It is a super-3 number, since 3×1644198503 (a number of 26 digits) contains 333 as substring.

It is a Curzon 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 47 ways as a sum of consecutive naturals, for example, 984467 + ... + 984633.

It is an arithmetic number, because the mean of its divisors is an integer number (3827880).

Almost surely, 2164419850 is an apocalyptic number.

164419850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164419850 is an abundant number, since it is smaller than the sum of its proper divisors (203056630).

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

164419850 is a wasteful number, since it uses less digits than its factorization.

164419850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 164419850 is about 12822.6303853773. The cubic root of 164419850 is about 547.8370699495.

The spelling of 164419850 in words is "one hundred sixty-four million, four hundred nineteen thousand, eight hundred fifty".

Divisors: 1 2 5 7 10 14 25 29 35 50 58 70 97 145 167 175 194 203 290 334 350 406 485 679 725 835 970 1015 1169 1358 1450 1670 2030 2338 2425 2813 3395 4175 4843 4850 5075 5626 5845 6790 8350 9686 10150 11690 14065 16199 16975 19691 24215 28130 29225 32398 33901 33950 39382 48430 58450 67802 70325 80995 98455 113393 121075 140650 161990 169505 196910 226786 242150 339010 404975 469771 492275 566965 809950 847525 939542 984550 1133930 1695050 2348855 2834825 3288397 4697710 5669650 6576794 11744275 16441985 23488550 32883970 82209925 164419850