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142313085 = 3351054171
BaseRepresentation
bin10000111101110…
…00011001111101
3100220210020212000
420132320121331
5242413004320
622042132513
73345432645
oct1036703175
9326706760
10142313085
1173371a22
123b7b1139
132363a135
1414c87525
15c761c90
hex87b867d

142313085 has 16 divisors (see below), whose sum is σ = 253001280. Its totient is φ = 75900240.

The previous prime is 142313081. The next prime is 142313089. The reversal of 142313085 is 580313241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142313081) and next prime (142313089).

It is not a de Polignac number, because 142313085 - 22 = 142313081 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142313081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526951 + ... + 527220.

It is an arithmetic number, because the mean of its divisors is an integer number (15812580).

Almost surely, 2142313085 is an apocalyptic number.

142313085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142313085 is a deficient number, since it is larger than the sum of its proper divisors (110688195).

142313085 is a wasteful number, since it uses less digits than its factorization.

142313085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054185 (or 1054179 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 142313085 is about 11929.5048095049. The cubic root of 142313085 is about 522.0934896628.

The spelling of 142313085 in words is "one hundred forty-two million, three hundred thirteen thousand, eighty-five".

Divisors: 1 3 5 9 15 27 45 135 1054171 3162513 5270855 9487539 15812565 28462617 47437695 142313085