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244121210320 = 245131911228963
BaseRepresentation
bin1110001101011011000…
…0100000110111010000
3212100010020010101202011
43203112300200313100
512444430012212240
6304051524432304
723431360023151
oct3432660406720
9770106111664
10244121210320
1194593071589
123b38b848694
131a036151c10
14bb5bb55928
15653bb756ea
hex38d6c20dd0

244121210320 has 80 divisors (see below), whose sum is σ = 614442673152. Its totient is φ = 89665067520.

The previous prime is 244121210299. The next prime is 244121210327. The reversal of 244121210320 is 23012121442.

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

It is a junction number, because it is equal to n+sod(n) for n = 244121210291 and 244121210300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244121210327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415842 + ... + 813121.

Almost surely, 2244121210320 is an apocalyptic number.

244121210320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244121210320 is an abundant number, since it is smaller than the sum of its proper divisors (370321462832).

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

244121210320 is a wasteful number, since it uses less digits than its factorization.

244121210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229180 (or 1229174 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 244121210320 its reverse (23012121442), we get a palindrome (267133331762).

The spelling of 244121210320 in words is "two hundred forty-four billion, one hundred twenty-one million, two hundred ten thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 191 208 260 382 520 764 955 1040 1528 1910 2483 3056 3820 4966 7640 9932 12415 15280 19864 24830 39728 49660 99320 198640 1228963 2457926 4915852 6144815 9831704 12289630 15976519 19663408 24579260 31953038 49158520 63906076 79882595 98317040 127812152 159765190 234731933 255624304 319530380 469463866 639060760 938927732 1173659665 1278121520 1877855464 2347319330 3051515129 3755710928 4694638660 6103030258 9389277320 12206060516 15257575645 18778554640 24412121032 30515151290 48824242064 61030302580 122060605160 244121210320