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121412 = 22127239
BaseRepresentation
bin11101101001000100
320011112202
4131221010
512341122
62334032
71013654
oct355104
9204482
10121412
1183245
125a318
1343355
1432364
1525e92
hex1da44

121412 has 12 divisors (see below), whose sum is σ = 215040. Its totient is φ = 59976.

The previous prime is 121403. The next prime is 121421. The reversal of 121412 is 214121.

It is an interprime number because it is at equal distance from previous prime (121403) and next prime (121421).

It is a nude number because it is divisible by every one of its digits.

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

It is a junction number, because it is equal to n+sod(n) for n = 121393 and 121402.

It is an unprimeable number.

121412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389 + ... + 627.

It is an arithmetic number, because the mean of its divisors is an integer number (17920).

2121412 is an apocalyptic number.

It is an amenable number.

121412 is a deficient number, since it is larger than the sum of its proper divisors (93628).

121412 is a wasteful number, since it uses less digits than its factorization.

121412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 368 counting only the distinct ones).

The product of its digits is 16, while the sum is 11.

The square root of 121412 is about 348.4422477255. The cubic root of 121412 is about 49.5169482488.

Adding to 121412 its reverse (214121), we get a palindrome (335533).

The spelling of 121412 in words is "one hundred twenty-one thousand, four hundred twelve", and thus it is an iban number.

Divisors: 1 2 4 127 239 254 478 508 956 30353 60706 121412