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244552240 = 2453782619
BaseRepresentation
bin11101001001110…
…01001000110000
3122001011112121101
432210321020300
51000101132430
640133334144
76026442202
oct1644711060
9561145541
10244552240
11116052799
1269a97354
133b885b8a
142469c772
1516709dca
hexe939230

244552240 has 40 divisors (see below), whose sum is σ = 583958160. Its totient is φ = 95175936.

The previous prime is 244552219. The next prime is 244552247. The reversal of 244552240 is 42255442.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 244552199 and 244552208.

It is not an unprimeable number, because it can be changed into a prime (244552247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38350 + ... + 44269.

It is an arithmetic number, because the mean of its divisors is an integer number (14598954).

Almost surely, 2244552240 is an apocalyptic number.

244552240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244552240 is an abundant number, since it is smaller than the sum of its proper divisors (339405920).

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

244552240 is a wasteful number, since it uses less digits than its factorization.

244552240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82669 (or 82663 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 244552240 is about 15638.1661328942. The cubic root of 244552240 is about 625.3510475880.

The spelling of 244552240 in words is "two hundred forty-four million, five hundred fifty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 37 40 74 80 148 185 296 370 592 740 1480 2960 82619 165238 330476 413095 660952 826190 1321904 1652380 3056903 3304760 6113806 6609520 12227612 15284515 24455224 30569030 48910448 61138060 122276120 244552240