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121452 = 22329349
BaseRepresentation
bin11101101001101100
320011121020
4131221230
512341302
62334140
71014042
oct355154
9204536
10121452
1183281
125a350
1343386
1432392
1525ebc
hex1da6c

121452 has 24 divisors (see below), whose sum is σ = 294000. Its totient is φ = 38976.

The previous prime is 121447. The next prime is 121453. The reversal of 121452 is 254121.

Adding to 121452 its reverse (254121), we get a palindrome (375573).

It can be divided in two parts, 12 and 1452, that multiplied together give a square (17424 = 1322).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (121453) 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, 174 + ... + 522.

It is an arithmetic number, because the mean of its divisors is an integer number (12250).

2121452 is an apocalyptic number.

121452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 348×349.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147000).

121452 is an abundant number, since it is smaller than the sum of its proper divisors (172548).

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

121452 is a wasteful number, since it uses less digits than its factorization.

121452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 383 counting only the distinct ones).

The product of its digits is 80, while the sum is 15.

The square root of 121452 is about 348.4996413198. The cubic root of 121452 is about 49.5223855489.

The spelling of 121452 in words is "one hundred twenty-one thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 349 698 1047 1396 2094 4188 10121 20242 30363 40484 60726 121452