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254445340 = 225196611013
BaseRepresentation
bin11110010101010…
…00011100011100
3122201210011101111
433022220130130
51010114222330
641125351404
76206515102
oct1712503434
9581704344
10254445340
1112069a606
1271268564
134093ab96
1425b15c72
151751132a
hexf2a871c

254445340 has 48 divisors (see below), whose sum is σ = 563865120. Its totient is φ = 96180480.

The previous prime is 254445313. The next prime is 254445371. The reversal of 254445340 is 43544452.

254445340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250674 + ... + 251686.

It is an arithmetic number, because the mean of its divisors is an integer number (11747190).

Almost surely, 2254445340 is an apocalyptic number.

254445340 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 254445340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281932560).

254445340 is an abundant number, since it is smaller than the sum of its proper divisors (309419780).

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

254445340 is a wasteful number, since it uses less digits than its factorization.

254445340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1700 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 254445340 is about 15951.3428901770. The cubic root of 254445340 is about 633.6724616508.

Adding to 254445340 its reverse (43544452), we get a palindrome (297989792).

The spelling of 254445340 in words is "two hundred fifty-four million, four hundred forty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 661 1013 1322 2026 2644 3305 4052 5065 6610 10130 12559 13220 19247 20260 25118 38494 50236 62795 76988 96235 125590 192470 251180 384940 669593 1339186 2678372 3347965 6695930 12722267 13391860 25444534 50889068 63611335 127222670 254445340