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2768500 = 225372113
BaseRepresentation
bin1010100011111001110100
312012122200001
422203321310
51202043000
6135201044
732350300
oct12437164
95178601
102768500
111621019
12b16184
1375c187
14520d00
1539a46a
hex2a3e74

2768500 has 72 divisors (see below), whose sum is σ = 7095816. Its totient is φ = 940800.

The previous prime is 2768497. The next prime is 2768539. The reversal of 2768500 is 58672.

It can be written as a sum of positive squares in 4 ways, for example, as 729316 + 2039184 = 854^2 + 1428^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24444 + ... + 24556.

It is an arithmetic number, because the mean of its divisors is an integer number (98553).

22768500 is an apocalyptic number.

2768500 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 2768500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3547908).

2768500 is an abundant number, since it is smaller than the sum of its proper divisors (4327316).

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

2768500 is a wasteful number, since it uses less digits than its factorization.

2768500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2768500 is about 1663.8810053607. The cubic root of 2768500 is about 140.4154327021.

The spelling of 2768500 in words is "two million, seven hundred sixty-eight thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 113 125 140 175 196 226 245 250 350 452 490 500 565 700 791 875 980 1130 1225 1582 1750 2260 2450 2825 3164 3500 3955 4900 5537 5650 6125 7910 11074 11300 12250 14125 15820 19775 22148 24500 27685 28250 39550 55370 56500 79100 98875 110740 138425 197750 276850 395500 553700 692125 1384250 2768500