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244047020 = 225719233989
BaseRepresentation
bin11101000101111…
…01110010101100
3122000012212120112
432202331302230
5444434001040
640114435152
76022236230
oct1642756254
9560185515
10244047020
11115838158
1269892ab8
133b739c29
14245aa5c0
151665a365
hexe8bdcac

244047020 has 96 divisors (see below), whose sum is σ = 643507200. Its totient is φ = 75803904.

The previous prime is 244046941. The next prime is 244047029. The reversal of 244047020 is 20740442.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (244047029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59186 + ... + 63174.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2244047020 is an apocalyptic number.

244047020 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 244047020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321753600).

244047020 is an abundant number, since it is smaller than the sum of its proper divisors (399460180).

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

244047020 is a wasteful number, since it uses less digits than its factorization.

244047020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047 (or 4045 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 244047020 is about 15622.0043528351. The cubic root of 244047020 is about 624.9201135228.

Adding to 244047020 its reverse (20740442), we get a palindrome (264787462).

The spelling of 244047020 in words is "two hundred forty-four million, forty-seven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 19 20 23 28 35 38 46 70 76 92 95 115 133 140 161 190 230 266 322 380 437 460 532 644 665 805 874 1330 1610 1748 2185 2660 3059 3220 3989 4370 6118 7978 8740 12236 15295 15956 19945 27923 30590 39890 55846 61180 75791 79780 91747 111692 139615 151582 183494 279230 303164 366988 378955 458735 530537 558460 642229 757910 917470 1061074 1284458 1515820 1743193 1834940 2122148 2568916 2652685 3211145 3486386 5305370 6422290 6972772 8715965 10610740 12202351 12844580 17431930 24404702 34863860 48809404 61011755 122023510 244047020