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143012252 = 22233742013
BaseRepresentation
bin10001000011000…
…11000110011100
3100222002202221002
420201203012130
5243102343002
622105125432
73354404225
oct1041430634
9328082832
10143012252
11737aa249
123ba89878
1323823446
1414dca24c
15c84e002
hex886319c

143012252 has 24 divisors (see below), whose sum is σ = 268217376. Its totient is φ = 66547008.

The previous prime is 143012249. The next prime is 143012257. The reversal of 143012252 is 252210341.

It is a super-2 number, since 2×1430122522 = 40905008444223008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143012257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17603 + ... + 24410.

It is an arithmetic number, because the mean of its divisors is an integer number (11175724).

Almost surely, 2143012252 is an apocalyptic number.

It is an amenable number.

143012252 is a deficient number, since it is larger than the sum of its proper divisors (125205124).

143012252 is a wasteful number, since it uses less digits than its factorization.

143012252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42077 (or 42075 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 143012252 is about 11958.7730139843. The cubic root of 143012252 is about 522.9470873988.

Adding to 143012252 its reverse (252210341), we get a palindrome (395222593).

The spelling of 143012252 in words is "one hundred forty-three million, twelve thousand, two hundred fifty-two".

Divisors: 1 2 4 23 37 46 74 92 148 851 1702 3404 42013 84026 168052 966299 1554481 1932598 3108962 3865196 6217924 35753063 71506126 143012252