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1220074 = 23131949
BaseRepresentation
bin100101001110111101010
32021222121221
410221313222
5303020244
642052254
713241032
oct4516752
92258557
101220074
11763729
124aa08a
1333944b
1423a8c2
15191784
hex129dea

1220074 has 8 divisors (see below), whose sum is σ = 1836900. Its totient is φ = 607776.

The previous prime is 1220071. The next prime is 1220077. The reversal of 1220074 is 4700221.

It is an interprime number because it is at equal distance from previous prime (1220071) and next prime (1220077).

It can be written as a sum of positive squares in 2 ways, for example, as 1177225 + 42849 = 1085^2 + 207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349 + ... + 1600.

21220074 is an apocalyptic number.

1220074 is a deficient number, since it is larger than the sum of its proper divisors (616826).

1220074 is a wasteful number, since it uses less digits than its factorization.

1220074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1220074 is about 1104.5695994368. The cubic root of 1220074 is about 106.8551333865.

Adding to 1220074 its reverse (4700221), we get a palindrome (5920295).

The spelling of 1220074 in words is "one million, two hundred twenty thousand, seventy-four".

Divisors: 1 2 313 626 1949 3898 610037 1220074