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142407047061 = 3215823005229
BaseRepresentation
bin1000010010100000011…
…1110001011110010101
3111121120120222112120100
42010220013301132111
54313122201001221
6145230525124313
713200656633136
oct2045007613625
9447516875510
10142407047061
115543807a234
12237239b9699
13105764773b6
146c6d1a3c8d
153a871da926
hex21281f1795

142407047061 has 6 divisors (see below), whose sum is σ = 205699067990. Its totient is φ = 94938031368.

The previous prime is 142407047059. The next prime is 142407047087. The reversal of 142407047061 is 160740704241.

It is a happy number.

142407047061 is a `hidden beast` number, since 142 + 40 + 7 + 0 + 470 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 128043024561 + 14364022500 = 357831^2 + 119850^2 .

It is not a de Polignac number, because 142407047061 - 21 = 142407047059 is a prime.

It is a super-3 number, since 3×1424070470613 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142407047011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7911502606 + ... + 7911502623.

Almost surely, 2142407047061 is an apocalyptic number.

It is an amenable number.

142407047061 is a deficient number, since it is larger than the sum of its proper divisors (63292020929).

142407047061 is a wasteful number, since it uses less digits than its factorization.

142407047061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15823005235 (or 15823005232 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 142407047061 in words is "one hundred forty-two billion, four hundred seven million, forty-seven thousand, sixty-one".

Divisors: 1 3 9 15823005229 47469015687 142407047061