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164420350 = 25211512857
BaseRepresentation
bin10011100110011…
…01101011111110
3102110101102022121
421303031223332
5314042422400
624152033154
74034356423
oct1163155376
9373342277
10164420350
11848a1496
12470927ba
13280aa763
1417b9dd4a
15e67c21a
hex9ccdafe

164420350 has 24 divisors (see below), whose sum is σ = 306194688. Its totient is φ = 65688000.

The previous prime is 164420339. The next prime is 164420359. The reversal of 164420350 is 53024461.

It is a super-3 number, since 3×1644203503 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164420359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56122 + ... + 58978.

It is an arithmetic number, because the mean of its divisors is an integer number (12758112).

Almost surely, 2164420350 is an apocalyptic number.

164420350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164420350 is a deficient number, since it is larger than the sum of its proper divisors (141774338).

164420350 is a wasteful number, since it uses less digits than its factorization.

164420350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020 (or 4015 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 164420350 is about 12822.6498821421. The cubic root of 164420350 is about 547.8376252723.

The spelling of 164420350 in words is "one hundred sixty-four million, four hundred twenty thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 1151 2302 2857 5714 5755 11510 14285 28570 28775 57550 71425 142850 3288407 6576814 16442035 32884070 82210175 164420350