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143130234405550 = 25272405714399927
BaseRepresentation
bin100000100010110100011010…
…110001110100001010101110
3200202210010011010112002122011
4200202310122301310022232
5122230021210001434200
61224225042201511434
742101550431522500
oct4042643261641256
9622703133462564
10143130234405550
1141673211a19447
1214077721aa257a
1361b317a857722
14274b77c869d70
15118322c4475ba
hex822d1ac742ae

143130234405550 has 72 divisors (see below), whose sum is σ = 309763446375024. Its totient is φ = 49061123879040.

The previous prime is 143130234405523. The next prime is 143130234405559. The reversal of 143130234405550 is 55504432031341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143130234405559) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2739687 + ... + 17139613.

It is an arithmetic number, because the mean of its divisors is an integer number (4302270088542).

Almost surely, 2143130234405550 is an apocalyptic number.

143130234405550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143130234405550 is an abundant number, since it is smaller than the sum of its proper divisors (166633211969474).

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

143130234405550 is a wasteful number, since it uses less digits than its factorization.

143130234405550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14404010 (or 14403998 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 143130234405550 its reverse (55504432031341), we get a palindrome (198634666436891).

The spelling of 143130234405550 in words is "one hundred forty-three trillion, one hundred thirty billion, two hundred thirty-four million, four hundred five thousand, five hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 350 490 1225 2450 4057 8114 20285 28399 40570 56798 101425 141995 198793 202850 283990 397586 709975 993965 1419950 1987930 4969825 9939650 14399927 28799854 71999635 100799489 143999270 201598978 359998175 503997445 705596423 719996350 1007994890 1411192846 2519987225 3527982115 5039974450 7055964230 17639910575 35279821150 58420503839 116841007678 292102519195 408943526873 584205038390 817887053746 1460512595975 2044717634365 2862604688111 2921025191950 4089435268730 5725209376222 10223588171825 14313023440555 20447176343650 28626046881110 71565117202775 143130234405550