Search a number
-
+
1975000 = 235579
BaseRepresentation
bin111100010001011011000
310201100012011
413202023120
51001200000
6110155304
722534006
oct7421330
93640164
101975000
111129935
127b2b34
13541c51
14395a76
152902ba
hex1e22d8

1975000 has 48 divisors (see below), whose sum is σ = 4687200. Its totient is φ = 780000.

The previous prime is 1974989. The next prime is 1975019. The reversal of 1975000 is 5791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24961 + ... + 25039.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

21975000 is an apocalyptic number.

1975000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1975000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2343600).

1975000 is an abundant number, since it is smaller than the sum of its proper divisors (2712200).

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

1975000 is an frugal number, since it uses more digits than its factorization.

1975000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 1975000 is about 1405.3469322555. The cubic root of 1975000 is about 125.4649352047.

The spelling of 1975000 in words is "one million, nine hundred seventy-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 79 100 125 158 200 250 316 395 500 625 632 790 1000 1250 1580 1975 2500 3125 3160 3950 5000 6250 7900 9875 12500 15800 19750 25000 39500 49375 79000 98750 197500 246875 395000 493750 987500 1975000