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142441461 = 32192336217
BaseRepresentation
bin10000111110101…
…11101111110101
3100221000202221200
420133113233311
5242431111321
622045003113
73346506141
oct1037275765
9327022850
10142441461
117344a418
123b853499
13236836b6
1414cbc221
15c789d26
hex87d7bf5

142441461 has 24 divisors (see below), whose sum is σ = 226000320. Its totient is φ = 86049216.

The previous prime is 142441459. The next prime is 142441489. The reversal of 142441461 is 164144241.

It is not a de Polignac number, because 142441461 - 21 = 142441459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142441261) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14176 + ... + 22041.

It is an arithmetic number, because the mean of its divisors is an integer number (9416680).

Almost surely, 2142441461 is an apocalyptic number.

It is an amenable number.

142441461 is a deficient number, since it is larger than the sum of its proper divisors (83558859).

142441461 is a wasteful number, since it uses less digits than its factorization.

142441461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36265 (or 36262 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 142441461 is about 11934.8842055547. The cubic root of 142441461 is about 522.2504303275.

The spelling of 142441461 in words is "one hundred forty-two million, four hundred forty-one thousand, four hundred sixty-one".

Divisors: 1 3 9 19 23 57 69 171 207 437 1311 3933 36217 108651 325953 688123 832991 2064369 2498973 6193107 7496919 15826829 47480487 142441461