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13723470 = 23251391097
BaseRepresentation
bin110100010110…
…011101001110
3221211020001200
4310112131032
512003122340
61210050330
7224435055
oct64263516
927736050
1013723470
117823712
1247199a6
132ac65c7
141b7339c
151311330
hexd1674e

13723470 has 48 divisors (see below), whose sum is σ = 35970480. Its totient is φ = 3629952.

The previous prime is 13723447. The next prime is 13723481. The reversal of 13723470 is 7432731.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11962 + ... + 13058.

It is an arithmetic number, because the mean of its divisors is an integer number (749385).

Almost surely, 213723470 is an apocalyptic number.

13723470 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 13723470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17985240).

13723470 is an abundant number, since it is smaller than the sum of its proper divisors (22247010).

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

13723470 is a wasteful number, since it uses less digits than its factorization.

13723470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 13723470 is about 3704.5202118493. The cubic root of 13723470 is about 239.4168132027.

The spelling of 13723470 in words is "thirteen million, seven hundred twenty-three thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 139 278 417 695 834 1097 1251 1390 2085 2194 2502 3291 4170 5485 6255 6582 9873 10970 12510 16455 19746 32910 49365 98730 152483 304966 457449 762415 914898 1372347 1524830 2287245 2744694 4574490 6861735 13723470