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143378712 = 233219163643
BaseRepresentation
bin10001000101111…
…00100100011000
3100222210101121200
420202330210120
5243201104322
622121034200
73360461511
oct1042744430
9328711550
10143378712
1173a2a604
1240025960
1323921199
1415083a08
15c8c28ac
hex88bc918

143378712 has 96 divisors (see below), whose sum is σ = 411902400. Its totient is φ = 44929728.

The previous prime is 143378699. The next prime is 143378713. The reversal of 143378712 is 217873341.

143378712 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143378713) 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 23 ways as a sum of consecutive naturals, for example, 222663 + ... + 223305.

It is an arithmetic number, because the mean of its divisors is an integer number (4290650).

Almost surely, 2143378712 is an apocalyptic number.

143378712 is a gapful number since it is divisible by the number (12) 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 143378712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205951200).

143378712 is an abundant number, since it is smaller than the sum of its proper divisors (268523688).

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

143378712 is a wasteful number, since it uses less digits than its factorization.

143378712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 830 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 143378712 is about 11974.0850172362. The cubic root of 143378712 is about 523.3933795446.

The spelling of 143378712 in words is "one hundred forty-three million, three hundred seventy-eight thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 114 152 163 171 228 326 342 456 489 643 652 684 978 1286 1304 1368 1467 1929 1956 2572 2934 3097 3858 3912 5144 5787 5868 6194 7716 9291 11574 11736 12217 12388 15432 18582 23148 24434 24776 27873 36651 37164 46296 48868 55746 73302 74328 97736 104809 109953 111492 146604 209618 219906 222984 293208 314427 419236 439812 628854 838472 879624 943281 1257708 1886562 1991371 2515416 3773124 3982742 5974113 7546248 7965484 11948226 15930968 17922339 23896452 35844678 47792904 71689356 143378712