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143101420 = 225711432161
BaseRepresentation
bin10001000011110…
…00110111101100
3100222021022020121
420201320313230
5243113221140
622111054324
73355225210
oct1041706754
9328238217
10143101420
1173860240
123bb113a4
1323854bc7
1415010940
15c86a64a
hex8878dec

143101420 has 96 divisors (see below), whose sum is σ = 383556096. Its totient is φ = 43545600.

The previous prime is 143101411. The next prime is 143101421. The reversal of 143101420 is 24101341.

143101420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 143101394 and 143101403.

It is not an unprimeable number, because it can be changed into a prime (143101421) 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, 65140 + ... + 67300.

It is an arithmetic number, because the mean of its divisors is an integer number (3995376).

Almost surely, 2143101420 is an apocalyptic number.

143101420 is a gapful number since it is divisible by the number (10) 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 143101420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191778048).

143101420 is an abundant number, since it is smaller than the sum of its proper divisors (240454676).

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

143101420 is a wasteful number, since it uses less digits than its factorization.

143101420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231 (or 2229 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 143101420 is about 11962.5005747126. The cubic root of 143101420 is about 523.0557504849.

Adding to 143101420 its reverse (24101341), we get a palindrome (167202761).

The spelling of 143101420 in words is "one hundred forty-three million, one hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 43 44 55 70 77 86 110 140 154 172 215 220 301 308 385 430 473 602 770 860 946 1204 1505 1540 1892 2161 2365 3010 3311 4322 4730 6020 6622 8644 9460 10805 13244 15127 16555 21610 23771 30254 33110 43220 47542 60508 66220 75635 92923 95084 118855 151270 166397 185846 237710 302540 332794 371692 464615 475420 650461 665588 831985 929230 1022153 1300922 1663970 1858460 2044306 2601844 3252305 3327940 4088612 5110765 6504610 7155071 10221530 13009220 14310142 20443060 28620284 35775355 71550710 143101420