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142101497 = 379833907
BaseRepresentation
bin10000111100001…
…00101111111001
3100220101111121102
420132010233321
5242334221442
622033421145
73343562036
oct1036045771
9326344542
10142101497
1173237a5a
123b70a7b5
1323594a35
1414c3038d
15c71e232
hex8784bf9

142101497 has 8 divisors (see below), whose sum is σ = 146127936. Its totient is φ = 138084912.

The previous prime is 142101481. The next prime is 142101511. The reversal of 142101497 is 794101241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142101497 - 24 = 142101481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142101097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34418 + ... + 38324.

It is an arithmetic number, because the mean of its divisors is an integer number (18265992).

Almost surely, 2142101497 is an apocalyptic number.

It is an amenable number.

142101497 is a deficient number, since it is larger than the sum of its proper divisors (4026439).

142101497 is an equidigital number, since it uses as much as digits as its factorization.

142101497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 142101497 is about 11920.6332466023. The cubic root of 142101497 is about 521.8346155753.

The spelling of 142101497 in words is "one hundred forty-two million, one hundred one thousand, four hundred ninety-seven".

Divisors: 1 37 983 3907 36371 144559 3840581 142101497