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244067920 = 24519211761
BaseRepresentation
bin11101000110000…
…10111001010000
3122000020221020121
432203002321100
5444440133140
640115120024
76022354165
oct1643027120
9560227217
10244067920
11115851928
12698a3014
133b7465b5
14245b406c
151666164a
hexe8c2e50

244067920 has 80 divisors (see below), whose sum is σ = 600943680. Its totient is φ = 91929600.

The previous prime is 244067917. The next prime is 244068007. The reversal of 244067920 is 29760442.

It is a tau number, because it is divible by the number of its divisors (80).

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, 320340 + ... + 321100.

It is an arithmetic number, because the mean of its divisors is an integer number (7511796).

Almost surely, 2244067920 is an apocalyptic number.

244067920 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 244067920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300471840).

244067920 is an abundant number, since it is smaller than the sum of its proper divisors (356875760).

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

244067920 is a wasteful number, since it uses less digits than its factorization.

244067920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 244067920 is about 15622.6732667620. The cubic root of 244067920 is about 624.9379522403.

The spelling of 244067920 in words is "two hundred forty-four million, sixty-seven thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 38 40 76 80 95 152 190 211 304 380 422 760 761 844 1055 1520 1522 1688 2110 3044 3376 3805 4009 4220 6088 7610 8018 8440 12176 14459 15220 16036 16880 20045 28918 30440 32072 40090 57836 60880 64144 72295 80180 115672 144590 160360 160571 231344 289180 320720 321142 578360 642284 802855 1156720 1284568 1605710 2569136 3050849 3211420 6101698 6422840 12203396 12845680 15254245 24406792 30508490 48813584 61016980 122033960 244067920