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1520214 = 23253369
BaseRepresentation
bin101110011001001010110
32212020100020
411303021112
5342121324
652330010
715631053
oct5631126
92766306
101520214
11949183
12613906
13412c47
142b802a
15200679
hex173256

1520214 has 8 divisors (see below), whose sum is σ = 3040440. Its totient is φ = 506736.

The previous prime is 1520213. The next prime is 1520221. The reversal of 1520214 is 4120251.

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

1520214 is an admirable number.

It is a super-2 number, since 2×15202142 = 4622101211592, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1520193 and 1520202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520213) 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 3 ways as a sum of consecutive naturals, for example, 126679 + ... + 126690.

It is an arithmetic number, because the mean of its divisors is an integer number (380055).

21520214 is an apocalyptic number.

1520214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1520214 is a wasteful number, since it uses less digits than its factorization.

1520214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253374.

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

The square root of 1520214 is about 1232.9695859996. The cubic root of 1520214 is about 114.9833372203.

Adding to 1520214 its reverse (4120251), we get a palindrome (5640465).

The spelling of 1520214 in words is "one million, five hundred twenty thousand, two hundred fourteen".

Divisors: 1 2 3 6 253369 506738 760107 1520214