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10143430220 = 2257211940949
BaseRepresentation
bin10010111001001100…
…00111011001001100
3222011220122122101202
421130212013121030
5131233204231340
64354304525032
7506235506600
oct113446073114
928156578352
1010143430220
11433577a290
121b71020778
13c58628c21
146c321b500
153e5790c15
hex25c98764c

10143430220 has 72 divisors (see below), whose sum is σ = 27031611600. Its totient is φ = 3161585280.

The previous prime is 10143430207. The next prime is 10143430223. The reversal of 10143430220 is 2203434101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10143430192 and 10143430201.

It is not an unprimeable number, because it can be changed into a prime (10143430223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459695 + ... + 481254.

It is an arithmetic number, because the mean of its divisors is an integer number (375439050).

Almost surely, 210143430220 is an apocalyptic number.

10143430220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10143430220 is an abundant number, since it is smaller than the sum of its proper divisors (16888181380).

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

10143430220 is a wasteful number, since it uses less digits than its factorization.

10143430220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940983 (or 940974 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10143430220 its reverse (2203434101), we get a palindrome (12346864321).

The spelling of 10143430220 in words is "ten billion, one hundred forty-three million, four hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 49 55 70 77 98 110 140 154 196 220 245 308 385 490 539 770 980 1078 1540 2156 2695 5390 10780 940949 1881898 3763796 4704745 6586643 9409490 10350439 13173286 18818980 20700878 26346572 32933215 41401756 46106501 51752195 65866430 72453073 92213002 103504390 131732860 144906146 184426004 207008780 230532505 289812292 362265365 461065010 507171511 724530730 922130020 1014343022 1449061460 2028686044 2535857555 5071715110 10143430220