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13880050 = 252277601
BaseRepresentation
bin110100111100…
…101011110010
3222010011211221
4310330223302
512023130200
61213255254
7225656422
oct64745362
928104757
1013880050
117920318
12479452a
132b4c962
141bb4482
15134291a
hexd3caf2

13880050 has 12 divisors (see below), whose sum is σ = 25816986. Its totient is φ = 5552000.

The previous prime is 13880047. The next prime is 13880057. The reversal of 13880050 is 5008831.

It can be written as a sum of positive squares in 3 ways, for example, as 13053769 + 826281 = 3613^2 + 909^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a junction number, because it is equal to n+sod(n) for n = 13879997 and 13880024.

It is not an unprimeable number, because it can be changed into a prime (13880057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138751 + ... + 138850.

Almost surely, 213880050 is an apocalyptic number.

13880050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13880050 is a deficient number, since it is larger than the sum of its proper divisors (11936936).

13880050 is a wasteful number, since it uses less digits than its factorization.

13880050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277613 (or 277608 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 13880050 is about 3725.5939123850. The cubic root of 13880050 is about 240.3239260289.

Adding to 13880050 its reverse (5008831), we get a palindrome (18888881).

The spelling of 13880050 in words is "thirteen million, eight hundred eighty thousand, fifty".

Divisors: 1 2 5 10 25 50 277601 555202 1388005 2776010 6940025 13880050