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2051320 = 23551283
BaseRepresentation
bin111110100110011111000
310212012212211
413310303320
51011120240
6111544504
723302345
oct7646370
93765784
102051320
111181207
1282b134
1356a8cb
143b57cc
152a7bea
hex1f4cf8

2051320 has 16 divisors (see below), whose sum is σ = 4615560. Its totient is φ = 820512.

The previous prime is 2051311. The next prime is 2051321. The reversal of 2051320 is 231502.

It is a self number, because there is not a number n which added to its sum of digits gives 2051320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25602 + ... + 25681.

22051320 is an apocalyptic number.

2051320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051320 is an abundant number, since it is smaller than the sum of its proper divisors (2564240).

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

2051320 is a wasteful number, since it uses less digits than its factorization.

2051320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51294 (or 51290 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2051320 is about 1432.2429961428. The cubic root of 2051320 is about 127.0606691345.

Adding to 2051320 its reverse (231502), we get a palindrome (2282822).

The spelling of 2051320 in words is "two million, fifty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 51283 102566 205132 256415 410264 512830 1025660 2051320