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244393020 = 223251779867
BaseRepresentation
bin11101001000100…
…10010000111100
3122000212110012100
432210102100330
51000031034040
640130105100
76025210044
oct1644222074
9560773170
10244393020
11115a54103
1269a1b190
133b82b571
142465a724
15166c7b30
hexe91243c

244393020 has 72 divisors (see below), whose sum is σ = 784942704. Its totient is φ = 61337088.

The previous prime is 244392989. The next prime is 244393027. The reversal of 244393020 is 20393442.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244393027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36874 + ... + 42993.

It is an arithmetic number, because the mean of its divisors is an integer number (10901982).

Almost surely, 2244393020 is an apocalyptic number.

244393020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244393020 is an abundant number, since it is smaller than the sum of its proper divisors (540549684).

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

244393020 is a wasteful number, since it uses less digits than its factorization.

244393020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79899 (or 79894 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 244393020 is about 15633.0745536507. The cubic root of 244393020 is about 625.2153028896.

The spelling of 244393020 in words is "two hundred forty-four million, three hundred ninety-three thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 17 18 20 30 34 36 45 51 60 68 85 90 102 153 170 180 204 255 306 340 510 612 765 1020 1530 3060 79867 159734 239601 319468 399335 479202 718803 798670 958404 1198005 1357739 1437606 1597340 2396010 2715478 2875212 3594015 4073217 4792020 5430956 6788695 7188030 8146434 12219651 13577390 14376060 16292868 20366085 24439302 27154780 40732170 48878604 61098255 81464340 122196510 244393020