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143195012 = 22172105809
BaseRepresentation
bin10001000100011…
…11101110000100
3100222110001121222
420202033232010
5243124220022
622113055512
73356065112
oct1042175604
9328401558
10143195012
1173914594
123bb57598
132388869c
1415036ab2
15c888242
hex888fb84

143195012 has 12 divisors (see below), whose sum is σ = 265332060. Its totient is φ = 67385856.

The previous prime is 143194993. The next prime is 143195021. The reversal of 143195012 is 210591341.

It can be written as a sum of positive squares in 2 ways, for example, as 89378116 + 53816896 = 9454^2 + 7336^2 .

It is a super-2 number, since 2×1431950122 = 41009622923360288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052837 + ... + 1052972.

It is an arithmetic number, because the mean of its divisors is an integer number (22111005).

Almost surely, 2143195012 is an apocalyptic number.

It is an amenable number.

143195012 is a deficient number, since it is larger than the sum of its proper divisors (122137048).

143195012 is a wasteful number, since it uses less digits than its factorization.

143195012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105830 (or 2105828 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 143195012 is about 11966.4118264415. The cubic root of 143195012 is about 523.1697562610.

The spelling of 143195012 in words is "one hundred forty-three million, one hundred ninety-five thousand, twelve".