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2945000 = 23541931
BaseRepresentation
bin1011001110111111101000
312112121210002
423032333220
51223220000
6143042132
734014002
oct13167750
95477702
102945000
111731693
12ba0348
137c1606
14569372
153d28d5
hex2cefe8

2945000 has 80 divisors (see below), whose sum is σ = 7497600. Its totient is φ = 1080000.

The previous prime is 2944999. The next prime is 2945021. The reversal of 2945000 is 5492.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 94985 + ... + 95015.

It is an arithmetic number, because the mean of its divisors is an integer number (93720).

22945000 is an apocalyptic number.

2945000 is a gapful number since it is divisible by the number (20) 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 2945000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3748800).

2945000 is an abundant number, since it is smaller than the sum of its proper divisors (4552600).

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

2945000 is a wasteful number, since it uses less digits than its factorization.

2945000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2945000 is about 1716.1002301731. The cubic root of 2945000 is about 143.3381405755.

The spelling of 2945000 in words is "two million, nine hundred forty-five thousand".

Divisors: 1 2 4 5 8 10 19 20 25 31 38 40 50 62 76 95 100 124 125 152 155 190 200 248 250 310 380 475 500 589 620 625 760 775 950 1000 1178 1240 1250 1550 1900 2356 2375 2500 2945 3100 3800 3875 4712 4750 5000 5890 6200 7750 9500 11780 11875 14725 15500 19000 19375 23560 23750 29450 31000 38750 47500 58900 73625 77500 95000 117800 147250 155000 294500 368125 589000 736250 1472500 2945000