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142103051 = 1737225919
BaseRepresentation
bin10000111100001…
…01001000001011
3100220101120201222
420132011020023
5242334244201
622033432255
73343566416
oct1036051013
9326346658
10142103051
1173239142
123b70b68b
132359565c
1414c30b7d
15c71e91b
hex878520b

142103051 has 8 divisors (see below), whose sum is σ = 154529280. Its totient is φ = 130128768.

The previous prime is 142103011. The next prime is 142103069. The reversal of 142103051 is 150301241.

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 142103051 - 222 = 137908747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142103011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112331 + ... + 113588.

It is an arithmetic number, because the mean of its divisors is an integer number (19316160).

Almost surely, 2142103051 is an apocalyptic number.

142103051 is a deficient number, since it is larger than the sum of its proper divisors (12426229).

142103051 is a wasteful number, since it uses less digits than its factorization.

142103051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225973.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 142103051 is about 11920.6984275251. The cubic root of 142103051 is about 521.8365178026.

Adding to 142103051 its reverse (150301241), we get a palindrome (292404292).

The spelling of 142103051 in words is "one hundred forty-two million, one hundred three thousand, fifty-one".

Divisors: 1 17 37 629 225919 3840623 8359003 142103051