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1975045 = 52953257
BaseRepresentation
bin111100010001100000101
310201100020211
413202030011
51001200140
6110155421
722534102
oct7421405
93640224
101975045
111129976
127b2b71
13541c87
14395aa9
152902ea
hex1e2305

1975045 has 16 divisors (see below), whose sum is σ = 2507760. Its totient is φ = 1490944.

The previous prime is 1975037. The next prime is 1975049. The reversal of 1975045 is 5405791.

It can be written as a sum of positive squares in 8 ways, for example, as 279841 + 1695204 = 529^2 + 1302^2 .

It is a cyclic number.

It is not a de Polignac number, because 1975045 - 23 = 1975037 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 74 + 55 + 0 + 47 + 59 .

It is a junction number, because it is equal to n+sod(n) for n = 1974998 and 1975016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1975049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7557 + ... + 7813.

It is an arithmetic number, because the mean of its divisors is an integer number (156735).

21975045 is an apocalyptic number.

It is an amenable number.

1975045 is a deficient number, since it is larger than the sum of its proper divisors (532715).

1975045 is a wasteful number, since it uses less digits than its factorization.

1975045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1975045 is about 1405.3629424458. The cubic root of 1975045 is about 125.4658880957.

The spelling of 1975045 in words is "one million, nine hundred seventy-five thousand, forty-five".

Divisors: 1 5 29 53 145 257 265 1285 1537 7453 7685 13621 37265 68105 395009 1975045