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142929001 = 197522579
BaseRepresentation
bin10001000010011…
…10110001101001
3100221221112201201
420201032301221
5243042212001
622103244201
73353606425
oct1041166151
9327845651
10142929001
1173752746
123ba49661
13237c4597
1414da7b85
15c834501
hex884ec69

142929001 has 4 divisors (see below), whose sum is σ = 150451600. Its totient is φ = 135406404.

The previous prime is 142928999. The next prime is 142929019. The reversal of 142929001 is 100929241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100929241 = 714418463.

It is a cyclic number.

It is not a de Polignac number, because 142929001 - 21 = 142928999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142929041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761271 + ... + 3761308.

It is an arithmetic number, because the mean of its divisors is an integer number (37612900).

Almost surely, 2142929001 is an apocalyptic number.

It is an amenable number.

142929001 is a deficient number, since it is larger than the sum of its proper divisors (7522599).

142929001 is an equidigital number, since it uses as much as digits as its factorization.

142929001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522598.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 142929001 is about 11955.2917572094. The cubic root of 142929001 is about 522.8455941867.

The spelling of 142929001 in words is "one hundred forty-two million, nine hundred twenty-nine thousand, one".

Divisors: 1 19 7522579 142929001