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121914 = 23213521
BaseRepresentation
bin11101110000111010
320012020100
4131300322
512400124
62340230
71015302
oct356072
9205210
10121914
1183661
125a676
1343650
1432602
15261c9
hex1dc3a

121914 has 24 divisors (see below), whose sum is σ = 285012. Its totient is φ = 37440.

The previous prime is 121909. The next prime is 121921. The reversal of 121914 is 419121.

It can be written as a sum of positive squares in 2 ways, for example, as 110889 + 11025 = 333^2 + 105^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27 + ... + 494.

2121914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142506).

121914 is an abundant number, since it is smaller than the sum of its proper divisors (163098).

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

121914 is a wasteful number, since it uses less digits than its factorization.

121914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 539 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 121914 is about 349.1618535866. The cubic root of 121914 is about 49.5851000163.

It can be divided in two parts, 121 and 914, that added together give a triangular number (1035 = T45).

The spelling of 121914 in words is "one hundred twenty-one thousand, nine hundred fourteen".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 521 1042 1563 3126 4689 6773 9378 13546 20319 40638 60957 121914