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14149890 = 2375647
BaseRepresentation
bin110101111110…
…100100000010
3222121220000000
4311332210002
512110244030
61223140430
7231162216
oct65764402
928556000
1014149890
117a95027
1248a4716
132c15721
141c44946
151397860
hexd7e902

14149890 has 64 divisors (see below), whose sum is σ = 38257920. Its totient is φ = 3767472.

The previous prime is 14149859. The next prime is 14149897. The reversal of 14149890 is 9894141.

14149890 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (14149897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21547 + ... + 22193.

It is an arithmetic number, because the mean of its divisors is an integer number (597780).

Almost surely, 214149890 is an apocalyptic number.

14149890 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 14149890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19128960).

14149890 is an abundant number, since it is smaller than the sum of its proper divisors (24108030).

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

14149890 is an frugal number, since it uses more digits than its factorization.

14149890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 14149890 is about 3761.6339534835. The cubic root of 14149890 is about 241.8713087592.

The spelling of 14149890 in words is "fourteen million, one hundred forty-nine thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 647 729 810 1215 1294 1458 1941 2187 2430 3235 3645 3882 4374 5823 6470 7290 9705 10935 11646 17469 19410 21870 29115 34938 52407 58230 87345 104814 157221 174690 262035 314442 471663 524070 786105 943326 1414989 1572210 2358315 2829978 4716630 7074945 14149890