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13489470 = 2335471063
BaseRepresentation
bin110011011101…
…010100111110
3221101100002000
4303131110332
511423130340
61201043130
7222441621
oct63352476
927340060
1013489470
117683925
1246264a6
132a43c47
141b11db8
1512b6d30
hexcdd53e

13489470 has 64 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 3517344.

The previous prime is 13489429. The next prime is 13489481. The reversal of 13489470 is 7498431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12159 + ... + 13221.

It is an arithmetic number, because the mean of its divisors is an integer number (574560).

Almost surely, 213489470 is an apocalyptic number.

13489470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13489470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18385920).

13489470 is an abundant number, since it is smaller than the sum of its proper divisors (23282370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13489470 is a wasteful number, since it uses less digits than its factorization.

13489470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 13489470 is about 3672.8013831407. The cubic root of 13489470 is about 238.0482330510.

The spelling of 13489470 in words is "thirteen million, four hundred eighty-nine thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 47 54 90 94 135 141 235 270 282 423 470 705 846 1063 1269 1410 2115 2126 2538 3189 4230 5315 6345 6378 9567 10630 12690 15945 19134 28701 31890 47835 49961 57402 95670 99922 143505 149883 249805 287010 299766 449649 499610 749415 899298 1348947 1498830 2248245 2697894 4496490 6744735 13489470