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143049312 = 2532770957
BaseRepresentation
bin10001000011011…
…00001001100000
3100222011122202200
420201230021200
5243110034222
622110013200
73354620250
oct1041541140
9328148680
10143049312
117382507a
123baa7200
1323837283
1414dd9960
15c859eac
hex886c260

143049312 has 72 divisors (see below), whose sum is σ = 464916816. Its totient is φ = 40870656.

The previous prime is 143049307. The next prime is 143049317. The reversal of 143049312 is 213940341.

It is an interprime number because it is at equal distance from previous prime (143049307) and next prime (143049317).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143049317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33463 + ... + 37494.

It is an arithmetic number, because the mean of its divisors is an integer number (6457178).

Almost surely, 2143049312 is an apocalyptic number.

143049312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143049312 is an abundant number, since it is smaller than the sum of its proper divisors (321867504).

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

143049312 is a wasteful number, since it uses less digits than its factorization.

143049312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70980 (or 70969 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 143049312 is about 11960.3224036813. The cubic root of 143049312 is about 522.9922554292.

Adding to 143049312 its reverse (213940341), we get a palindrome (356989653).

The spelling of 143049312 in words is "one hundred forty-three million, forty-nine thousand, three hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 70957 141914 212871 283828 425742 496699 567656 638613 851484 993398 1135312 1277226 1490097 1702968 1986796 2270624 2554452 2980194 3405936 3973592 4470291 5108904 5960388 6811872 7947184 8940582 10217808 11920776 15894368 17881164 20435616 23841552 35762328 47683104 71524656 143049312