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142009480 = 23526313499
BaseRepresentation
bin10000111011011…
…10010010001000
3100220012211101101
420131232102020
5242323300410
622031431144
73343026544
oct1035562210
9326184341
10142009480
1173184908
123b6854b4
1323561ba2
1414c08a24
15c701d3a
hex876e488

142009480 has 32 divisors (see below), whose sum is σ = 320760000. Its totient is φ = 56583616.

The previous prime is 142009463. The next prime is 142009487. The reversal of 142009480 is 84900241.

It is not an unprimeable number, because it can be changed into a prime (142009487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3771 + ... + 17269.

It is an arithmetic number, because the mean of its divisors is an integer number (10023750).

Almost surely, 2142009480 is an apocalyptic number.

142009480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142009480 is an abundant number, since it is smaller than the sum of its proper divisors (178750520).

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

142009480 is a wasteful number, since it uses less digits than its factorization.

142009480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13773 (or 13769 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 142009480 is about 11916.7730531382. The cubic root of 142009480 is about 521.7219542614.

The spelling of 142009480 in words is "one hundred forty-two million, nine thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 263 526 1052 1315 2104 2630 5260 10520 13499 26998 53996 67495 107992 134990 269980 539960 3550237 7100474 14200948 17751185 28401896 35502370 71004740 142009480