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143704940 = 2257185247
BaseRepresentation
bin10001001000011…
…00001101101100
3101000101222010012
420210030031230
5243242024230
622132032352
73363320561
oct1044141554
9330358105
10143704940
1174132715
12401626b8
1323a06812
141512a868
15c939395
hex890c36c

143704940 has 12 divisors (see below), whose sum is σ = 301780416. Its totient is φ = 57481968.

The previous prime is 143704937. The next prime is 143704993. The reversal of 143704940 is 49407341.

It is a happy number.

It is a super-2 number, since 2×1437049402 = 41302219560807200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143704897 and 143704906.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3592604 + ... + 3592643.

It is an arithmetic number, because the mean of its divisors is an integer number (25148368).

Almost surely, 2143704940 is an apocalyptic number.

143704940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143704940 is an abundant number, since it is smaller than the sum of its proper divisors (158075476).

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

143704940 is a wasteful number, since it uses less digits than its factorization.

143704940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7185256 (or 7185254 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 143704940 is about 11987.6995291007. The cubic root of 143704940 is about 523.7900359193.

The spelling of 143704940 in words is "one hundred forty-three million, seven hundred four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 7185247 14370494 28740988 35926235 71852470 143704940