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142473015 = 3253166067
BaseRepresentation
bin10000111110111…
…11011100110111
3100221002101020100
420133133130313
5242433114030
622045405143
73350000136
oct1037373467
9327071210
10142473015
11734710a3
123b8697b3
1323694b79
1414cc991d
15c794360
hex87df737

142473015 has 12 divisors (see below), whose sum is σ = 246953304. Its totient is φ = 75985584.

The previous prime is 142473007. The next prime is 142473031. The reversal of 142473015 is 510374241.

It is not a de Polignac number, because 142473015 - 23 = 142473007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142473015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1582989 + ... + 1583078.

It is an arithmetic number, because the mean of its divisors is an integer number (20579442).

Almost surely, 2142473015 is an apocalyptic number.

142473015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142473015 is a deficient number, since it is larger than the sum of its proper divisors (104480289).

142473015 is a wasteful number, since it uses less digits than its factorization.

142473015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166078 (or 3166075 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 142473015 is about 11936.2060555270. The cubic root of 142473015 is about 522.2889909013.

The spelling of 142473015 in words is "one hundred forty-two million, four hundred seventy-three thousand, fifteen".

Divisors: 1 3 5 9 15 45 3166067 9498201 15830335 28494603 47491005 142473015