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143482420 = 22511096469
BaseRepresentation
bin10001000110101…
…01111000110100
3100222222122212201
420203111320310
5243212414140
622123154244
73361403044
oct1043257064
9328878781
10143482420
1173aa0514
1240075984
1323959453
14150ad724
15c8e349a
hex88d5e34

143482420 has 24 divisors (see below), whose sum is σ = 301631400. Its totient is φ = 57332352.

The previous prime is 143482403. The next prime is 143482421. The reversal of 143482420 is 24284341.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11370384 + 132112036 = 3372^2 + 11494^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143482421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18946 + ... + 25414.

It is an arithmetic number, because the mean of its divisors is an integer number (12567975).

Almost surely, 2143482420 is an apocalyptic number.

143482420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143482420 is an abundant number, since it is smaller than the sum of its proper divisors (158148980).

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

143482420 is a wasteful number, since it uses less digits than its factorization.

143482420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7587 (or 7585 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 143482420 is about 11978.4147532134. The cubic root of 143482420 is about 523.5195419246.

The spelling of 143482420 in words is "one hundred forty-three million, four hundred eighty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1109 2218 4436 5545 6469 11090 12938 22180 25876 32345 64690 129380 7174121 14348242 28696484 35870605 71741210 143482420