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142752087 = 32971011619
BaseRepresentation
bin10001000001000…
…11100101010111
3100221121120001100
420200203211113
5243021031322
622055401143
73352241562
oct1040434527
9327546040
10142752087
1173641835
123b9831b3
1323761bba
1414d5d4d9
15c7ebdac
hex8823957

142752087 has 24 divisors (see below), whose sum is σ = 210515760. Its totient is φ = 93196800.

The previous prime is 142752083. The next prime is 142752091. The reversal of 142752087 is 780257241.

It is an interprime number because it is at equal distance from previous prime (142752083) and next prime (142752091).

It is not a de Polignac number, because 142752087 - 22 = 142752083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142752083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87364 + ... + 88982.

It is an arithmetic number, because the mean of its divisors is an integer number (8771490).

Almost surely, 2142752087 is an apocalyptic number.

142752087 is a deficient number, since it is larger than the sum of its proper divisors (67763673).

142752087 is a wasteful number, since it uses less digits than its factorization.

142752087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 142752087 is about 11947.8904832611. The cubic root of 142752087 is about 522.6297833173.

The spelling of 142752087 in words is "one hundred forty-two million, seven hundred fifty-two thousand, eighty-seven".

Divisors: 1 3 9 97 101 291 303 873 909 1619 4857 9797 14571 29391 88173 157043 163519 471129 490557 1413387 1471671 15861343 47584029 142752087