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142291361 = 1941182659
BaseRepresentation
bin10000111101100…
…11000110100001
3100220202011001102
420132303012201
5242411310421
622041444145
73345312422
oct1036630641
9326664042
10142291361
1173357673
123b7a0655
1323630294
1414c7d649
15c75a60b
hex87b31a1

142291361 has 8 divisors (see below), whose sum is σ = 153434400. Its totient is φ = 131513760.

The previous prime is 142291349. The next prime is 142291367. The reversal of 142291361 is 163192241.

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

It is a cyclic number.

It is not a de Polignac number, because 142291361 - 26 = 142291297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142291367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90551 + ... + 92108.

It is an arithmetic number, because the mean of its divisors is an integer number (19179300).

Almost surely, 2142291361 is an apocalyptic number.

It is an amenable number.

142291361 is a deficient number, since it is larger than the sum of its proper divisors (11143039).

142291361 is a wasteful number, since it uses less digits than its factorization.

142291361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182719.

The product of its digits is 2592, while the sum is 29.

The square root of 142291361 is about 11928.5942591740. The cubic root of 142291361 is about 522.0669225669.

The spelling of 142291361 in words is "one hundred forty-two million, two hundred ninety-one thousand, three hundred sixty-one".

Divisors: 1 19 41 779 182659 3470521 7489019 142291361