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244481740 = 22519643373
BaseRepresentation
bin11101001001001…
…11111011001100
3122001000221220021
432210213323030
51000041403430
640132031524
76026026516
oct1644477314
9561027807
10244481740
11116004828
1269a625a4
133b85ca69
1424680bb6
15166e407a
hexe927ecc

244481740 has 24 divisors (see below), whose sum is σ = 540434160. Its totient is φ = 92645568.

The previous prime is 244481737. The next prime is 244481771. The reversal of 244481740 is 47184442.

It is a junction number, because it is equal to n+sod(n) for n = 244481696 and 244481705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321307 + ... + 322066.

It is an arithmetic number, because the mean of its divisors is an integer number (22518090).

Almost surely, 2244481740 is an apocalyptic number.

244481740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244481740 is an abundant number, since it is smaller than the sum of its proper divisors (295952420).

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

244481740 is a wasteful number, since it uses less digits than its factorization.

244481740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643401 (or 643399 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 34.

The square root of 244481740 is about 15635.9118697951. The cubic root of 244481740 is about 625.2909493366.

The spelling of 244481740 in words is "two hundred forty-four million, four hundred eighty-one thousand, seven hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 643373 1286746 2573492 3216865 6433730 12224087 12867460 24448174 48896348 61120435 122240870 244481740