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164144351 = 747618179
BaseRepresentation
bin10011100100010…
…10010011011111
3102102212101201102
421302022103133
5314010104401
624142103315
74032126650
oct1162122337
9372771642
10164144351
1184723098
1246b7ab3b
1328011c47
1417b2b527
15e62556b
hex9c8a4df

164144351 has 16 divisors (see below), whose sum is σ = 194749440. Its totient is φ = 135427680.

The previous prime is 164144341. The next prime is 164144413. The reversal of 164144351 is 153441461.

It is a de Polignac number, because none of the positive numbers 2k-164144351 is a prime.

It is a super-2 number, since 2×1641443512 = 53886735930422402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164144311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15980 + ... + 24158.

It is an arithmetic number, because the mean of its divisors is an integer number (12171840).

Almost surely, 2164144351 is an apocalyptic number.

164144351 is a deficient number, since it is larger than the sum of its proper divisors (30605089).

164144351 is an equidigital number, since it uses as much as digits as its factorization.

164144351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8294.

The product of its digits is 5760, while the sum is 29.

The square root of 164144351 is about 12811.8831949093. The cubic root of 164144351 is about 547.5309168477.

The spelling of 164144351 in words is "one hundred sixty-four million, one hundred forty-four thousand, three hundred fifty-one".

Divisors: 1 7 47 61 329 427 2867 8179 20069 57253 384413 498919 2690891 3492433 23449193 164144351