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1401212 = 2219103179
BaseRepresentation
bin101010110000101111100
32122012002202
411112011330
5324314322
650011032
714624111
oct5260574
92565082
101401212
1187782a
12576a78
133a0a27
14286908
151ca292
hex15617c

1401212 has 24 divisors (see below), whose sum is σ = 2620800. Its totient is φ = 653616.

The previous prime is 1401203. The next prime is 1401217. The reversal of 1401212 is 2121041.

1401212 is a modest number, since divided by 1212 gives 140 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1401193 and 1401202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7739 + ... + 7917.

It is an arithmetic number, because the mean of its divisors is an integer number (109200).

21401212 is an apocalyptic number.

It is an amenable number.

1401212 is a deficient number, since it is larger than the sum of its proper divisors (1219588).

1401212 is a wasteful number, since it uses less digits than its factorization.

1401212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 303 counting only the distinct ones).

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

The square root of 1401212 is about 1183.7280092994. The cubic root of 1401212 is about 111.9011670635.

Adding to 1401212 its reverse (2121041), we get a palindrome (3522253).

The spelling of 1401212 in words is "one million, four hundred one thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 103 179 206 358 412 716 1957 3401 3914 6802 7828 13604 18437 36874 73748 350303 700606 1401212