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2081275 = 52721699
BaseRepresentation
bin111111100000111111011
310220201222021
413330013323
51013100100
6112335311
723455600
oct7740773
93821867
102081275
1111a1769
12844537
1357b431
143c26a7
152b1a1a
hex1fc1fb

2081275 has 18 divisors (see below), whose sum is σ = 3003900. Its totient is φ = 1426320.

The previous prime is 2081273. The next prime is 2081281. The reversal of 2081275 is 5721802.

It is not a de Polignac number, because 2081275 - 21 = 2081273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2081273) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 376 + ... + 2074.

22081275 is an apocalyptic number.

2081275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2081275 is a deficient number, since it is larger than the sum of its proper divisors (922625).

2081275 is a wasteful number, since it uses less digits than its factorization.

2081275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1711 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2081275 is about 1442.6624691867. The cubic root of 2081275 is about 127.6761629990.

It can be divided in two parts, 2081 and 275, that multiplied together give a palindrome (572275).

The spelling of 2081275 in words is "two million, eighty-one thousand, two hundred seventy-five".

Divisors: 1 5 7 25 35 49 175 245 1225 1699 8495 11893 42475 59465 83251 297325 416255 2081275