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169996953 = 378095093
BaseRepresentation
bin10100010000111…
…11001010011001
3102211212201222110
422020133022121
5322004400303
624511342533
74132643640
oct1210371231
9384781873
10169996953
1187a60255
1248b21a49
13292b0b19
1418812357
15edce703
hexa21f299

169996953 has 8 divisors (see below), whose sum is σ = 259043008. Its totient is φ = 97141104.

The previous prime is 169996951. The next prime is 169996973. The reversal of 169996953 is 359699961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 169996953 - 21 = 169996951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169996893 and 169996902.

It is not an unprimeable number, because it can be changed into a prime (169996951) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4047526 + ... + 4047567.

It is an arithmetic number, because the mean of its divisors is an integer number (32380376).

Almost surely, 2169996953 is an apocalyptic number.

It is an amenable number.

169996953 is a deficient number, since it is larger than the sum of its proper divisors (89046055).

169996953 is an equidigital number, since it uses as much as digits as its factorization.

169996953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095103.

The product of its digits is 3542940, while the sum is 57.

The square root of 169996953 is about 13038.2879627657. The cubic root of 169996953 is about 553.9625159814.

The spelling of 169996953 in words is "one hundred sixty-nine million, nine hundred ninety-six thousand, nine hundred fifty-three".

Divisors: 1 3 7 21 8095093 24285279 56665651 169996953