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13880046 = 2315111531
BaseRepresentation
bin110100111100…
…101011101110
3222010011211210
4310330223232
512023130141
61213255250
7225656415
oct64745356
928104753
1013880046
117920314
124794526
132b4c95b
141bb447c
151342916
hexd3caee

13880046 has 16 divisors (see below), whose sum is σ = 27796608. Its totient is φ = 4620600.

The previous prime is 13880039. The next prime is 13880047. The reversal of 13880046 is 64008831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13879995 and 13880022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13880047) 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, 8301 + ... + 9831.

It is an arithmetic number, because the mean of its divisors is an integer number (1737288).

Almost surely, 213880046 is an apocalyptic number.

13880046 is an abundant number, since it is smaller than the sum of its proper divisors (13916562).

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

13880046 is a wasteful number, since it uses less digits than its factorization.

13880046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 13880046 is about 3725.5933755578. The cubic root of 13880046 is about 240.3239029431.

Adding to 13880046 its reverse (64008831), we get a palindrome (77888877).

The spelling of 13880046 in words is "thirteen million, eight hundred eighty thousand, forty-six".

Divisors: 1 2 3 6 1511 1531 3022 3062 4533 4593 9066 9186 2313341 4626682 6940023 13880046