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142498395 = 32513243587
BaseRepresentation
bin10000111111001…
…01101001011011
3100221010200001100
420133211221123
5242434422040
622050122443
73350134134
oct1037455133
9327120040
10142498395
1173489176
123b880423
13236a35a0
1414cd4c8b
15c79bb30
hex87e5a5b

142498395 has 24 divisors (see below), whose sum is σ = 265998096. Its totient is φ = 70152768.

The previous prime is 142498387. The next prime is 142498399. The reversal of 142498395 is 593894241.

142498395 is a `hidden beast` number, since 14 + 249 + 8 + 395 = 666.

It is not a de Polignac number, because 142498395 - 23 = 142498387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 142498395.

It is not an unprimeable number, because it can be changed into a prime (142498399) 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, 121209 + ... + 122378.

It is an arithmetic number, because the mean of its divisors is an integer number (11083254).

Almost surely, 2142498395 is an apocalyptic number.

142498395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142498395 is a deficient number, since it is larger than the sum of its proper divisors (123499701).

142498395 is a wasteful number, since it uses less digits than its factorization.

142498395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243611 (or 243608 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 142498395 is about 11937.2691600717. The cubic root of 142498395 is about 522.3200024055.

The spelling of 142498395 in words is "one hundred forty-two million, four hundred ninety-eight thousand, three hundred ninety-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 243587 730761 1217935 2192283 3166631 3653805 9499893 10961415 15833155 28499679 47499465 142498395