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2072308 = 227297109
BaseRepresentation
bin111111001111011110100
310220021200011
413321323310
51012303213
6112230004
723420500
oct7717364
93807604
102072308
111195a57
1283b304
13577324
143bd300
152ae03d
hex1f9ef4

2072308 has 36 divisors (see below), whose sum is σ = 4301220. Its totient is φ = 870912.

The previous prime is 2072293. The next prime is 2072321. The reversal of 2072308 is 8032702.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1192464 + 879844 = 1092^2 + 938^2 .

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, 18958 + ... + 19066.

22072308 is an apocalyptic number.

2072308 is a gapful number since it is divisible by the number (28) 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 2072308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2150610).

2072308 is an abundant number, since it is smaller than the sum of its proper divisors (2228912).

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

2072308 is a wasteful number, since it uses less digits than its factorization.

2072308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2072308 is about 1439.5513189880. The cubic root of 2072308 is about 127.4925383305.

The spelling of 2072308 in words is "two million, seventy-two thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 49 97 98 109 194 196 218 388 436 679 763 1358 1526 2716 3052 4753 5341 9506 10573 10682 19012 21146 21364 42292 74011 148022 296044 518077 1036154 2072308