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164424068843 = 17942110212137
BaseRepresentation
bin1001100100100001110…
…0000010111011101011
3120201101222220010112112
42121020130002323223
510143220030200333
6203311350232535
714610403345046
oct2311034027353
9521358803475
10164424068843
1163806111601
1227a4935574b
13126749a9038
147d5b2d5c5d
15442507c948
hex2648702eeb

164424068843 has 16 divisors (see below), whose sum is σ = 165975334560. Its totient is φ = 162881107200.

The previous prime is 164424068803. The next prime is 164424068899. The reversal of 164424068843 is 348860424461.

It is a cyclic number.

It is not a de Polignac number, because 164424068843 - 218 = 164423806699 is a prime.

It is a super-3 number, since 3×1644240688433 (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164424068791 and 164424068800.

It is not an unprimeable number, because it can be changed into a prime (164424068803) 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, 76940471 + ... + 76942607.

It is an arithmetic number, because the mean of its divisors is an integer number (10373458410).

Almost surely, 2164424068843 is an apocalyptic number.

164424068843 is a deficient number, since it is larger than the sum of its proper divisors (1551265717).

164424068843 is a wasteful number, since it uses less digits than its factorization.

164424068843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758.

The product of its (nonzero) digits is 3538944, while the sum is 50.

The spelling of 164424068843 in words is "one hundred sixty-four billion, four hundred twenty-four million, sixty-eight thousand, eight hundred forty-three".

Divisors: 1 179 421 1021 2137 75359 182759 382523 429841 899677 2181877 76941539 161042183 390555983 918570217 164424068843