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143061113217 = 31117244933409
BaseRepresentation
bin1000010100111100011…
…0110101100110000001
3111200021011201112122210
42011033012311212001
54320442121110332
6145415452052333
713223121253431
oct2051706654601
9450234645583
10143061113217
11557432a5880
1223886a640a9
131064bb230a9
146cd1dc22c1
153ac4837ecc
hex214f1b5981

143061113217 has 48 divisors (see below), whose sum is σ = 221548392000. Its totient is φ = 81419304960.

The previous prime is 143061113191. The next prime is 143061113249. The reversal of 143061113217 is 712311160341.

It is not a de Polignac number, because 143061113217 - 214 = 143061096833 is a prime.

It is a super-2 number, since 2×1430611132172 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143061113297) 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 47 ways as a sum of consecutive naturals, for example, 4265409 + ... + 4298817.

It is an arithmetic number, because the mean of its divisors is an integer number (4615591500).

Almost surely, 2143061113217 is an apocalyptic number.

143061113217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

143061113217 is a deficient number, since it is larger than the sum of its proper divisors (78487278783).

143061113217 is a wasteful number, since it uses less digits than its factorization.

143061113217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33906 (or 33889 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

Adding to 143061113217 its reverse (712311160341), we get a palindrome (855372273558).

The spelling of 143061113217 in words is "one hundred forty-three billion, sixty-one million, one hundred thirteen thousand, two hundred seventeen".

Divisors: 1 3 11 17 33 51 187 289 449 561 867 1347 3179 4939 7633 9537 14817 22899 33409 83963 100227 129761 251889 367499 389283 567953 1102497 1427371 1703859 4282113 6247483 9655201 15000641 18742449 28965603 45001923 106207211 165007051 255010897 318621633 495021153 765032691 2805119867 4335185249 8415359601 13005555747 47687037739 143061113217