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142304665 = 5151188483
BaseRepresentation
bin10000111101101…
…10010110011001
3100220202211022011
420132312112121
5242412222130
622042025521
73345366256
oct1036662631
9326684264
10142304665
1173366668
123b7a82a1
1323636359
1414c8442d
15c75e52a
hex87b6599

142304665 has 8 divisors (see below), whose sum is σ = 171897408. Its totient is φ = 113089200.

The previous prime is 142304647. The next prime is 142304677. The reversal of 142304665 is 566403241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142304665 - 25 = 142304633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93487 + ... + 94996.

It is an arithmetic number, because the mean of its divisors is an integer number (21487176).

Almost surely, 2142304665 is an apocalyptic number.

It is an amenable number.

142304665 is a deficient number, since it is larger than the sum of its proper divisors (29592743).

142304665 is a wasteful number, since it uses less digits than its factorization.

142304665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188639.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 142304665 is about 11929.1518977671. The cubic root of 142304665 is about 522.0831928493.

The spelling of 142304665 in words is "one hundred forty-two million, three hundred four thousand, six hundred sixty-five".

Divisors: 1 5 151 755 188483 942415 28460933 142304665