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13121150 = 252737489
BaseRepresentation
bin110010000011…
…011001111110
3220200121211112
4302003121332
511324334100
61145122022
7216346040
oct62033176
926617745
1013121150
117452129
124489312
1329453c3
141a57a90
151242b35
hexc8367e

13121150 has 24 divisors (see below), whose sum is σ = 27892560. Its totient is φ = 4498560.

The previous prime is 13121117. The next prime is 13121159. The reversal of 13121150 is 5112131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121159) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 18395 + ... + 19094.

It is an arithmetic number, because the mean of its divisors is an integer number (1162190).

Almost surely, 213121150 is an apocalyptic number.

13121150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121150 is an abundant number, since it is smaller than the sum of its proper divisors (14771410).

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

13121150 is a wasteful number, since it uses less digits than its factorization.

13121150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37508 (or 37503 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 13121150 is about 3622.3127970952. The cubic root of 13121150 is about 235.8616324786.

Adding to 13121150 its reverse (5112131), we get a palindrome (18233281).

The spelling of 13121150 in words is "thirteen million, one hundred twenty-one thousand, one hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 37489 74978 187445 262423 374890 524846 937225 1312115 1874450 2624230 6560575 13121150