[go: up one dir, main page]

Search a number
-
+
1221348 = 223175987
BaseRepresentation
bin100101010001011100100
32022001101010
410222023210
5303040343
642102220
713244532
oct4521344
92261333
101221348
11764687
124aa970
13339bbb
1423b152
15191d33
hex12a2e4

1221348 has 24 divisors (see below), whose sum is σ = 3017952. Its totient is φ = 383104.

The previous prime is 1221299. The next prime is 1221373. The reversal of 1221348 is 8431221.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2790 + ... + 3197.

It is an arithmetic number, because the mean of its divisors is an integer number (125748).

21221348 is an apocalyptic number.

It is an amenable number.

1221348 is an abundant number, since it is smaller than the sum of its proper divisors (1796604).

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

1221348 is a wasteful number, since it uses less digits than its factorization.

1221348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011 (or 6009 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1221348 is about 1105.1461441818. The cubic root of 1221348 is about 106.8923131215.

Adding to 1221348 its reverse (8431221), we get a palindrome (9652569).

The spelling of 1221348 in words is "one million, two hundred twenty-one thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 5987 11974 17961 23948 35922 71844 101779 203558 305337 407116 610674 1221348