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13950780 = 2235232513
BaseRepresentation
bin110101001101…
…111100111100
3222020202212120
4311031330330
512032411110
61215002540
7226402554
oct65157474
928222776
1013950780
117969478
124809450
132b75bcc
141bd2164
151358870
hexd4df3c

13950780 has 24 divisors (see below), whose sum is σ = 39062352. Its totient is φ = 3720192.

The previous prime is 13950773. The next prime is 13950787. The reversal of 13950780 is 8705931.

It is an interprime number because it is at equal distance from previous prime (13950773) and next prime (13950787).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13950787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116197 + ... + 116316.

It is an arithmetic number, because the mean of its divisors is an integer number (1627598).

Almost surely, 213950780 is an apocalyptic number.

13950780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13950780 is an abundant number, since it is smaller than the sum of its proper divisors (25111572).

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

13950780 is a wasteful number, since it uses less digits than its factorization.

13950780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232525 (or 232523 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 13950780 is about 3735.0742964498. The cubic root of 13950780 is about 240.7314490504.

The spelling of 13950780 in words is "thirteen million, nine hundred fifty thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 232513 465026 697539 930052 1162565 1395078 2325130 2790156 3487695 4650260 6975390 13950780