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169712444 = 22117352837
BaseRepresentation
bin10100001110110…
…01101100111100
3102211100021201002
422013121230330
5321421244234
624501305432
74130350316
oct1207315474
9384307632
10169712444
1187886520
1248a05278
1329211485
141877a7b6
15ed7527e
hexa1d9b3c

169712444 has 24 divisors (see below), whose sum is σ = 328441008. Its totient is φ = 76083840.

The previous prime is 169712419. The next prime is 169712453. The reversal of 169712444 is 444217961.

It is a super-3 number, since 3×1697124443 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 169712398 and 169712407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23207 + ... + 29630.

It is an arithmetic number, because the mean of its divisors is an integer number (13685042).

Almost surely, 2169712444 is an apocalyptic number.

It is an amenable number.

169712444 is a deficient number, since it is larger than the sum of its proper divisors (158728564).

169712444 is a wasteful number, since it uses less digits than its factorization.

169712444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52925 (or 52923 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 169712444 is about 13027.3728740679. The cubic root of 169712444 is about 553.6533039141.

It can be divided in two parts, 1697 and 12444, that added together give a palindrome (14141).

The spelling of 169712444 in words is "one hundred sixty-nine million, seven hundred twelve thousand, four hundred forty-four".

Divisors: 1 2 4 11 22 44 73 146 292 803 1606 3212 52837 105674 211348 581207 1162414 2324828 3857101 7714202 15428404 42428111 84856222 169712444