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142630726 = 2710187909
BaseRepresentation
bin10001000000001…
…01111101000110
3100221101101120111
420200011331012
5243003140401
622053023234
73351225010
oct1040057506
9327341514
10142630726
1173569637
123b924b1a
132371b8a4
1414d2b1b0
15c7c5e51
hex8805f46

142630726 has 8 divisors (see below), whose sum is σ = 244509840. Its totient is φ = 61127448.

The previous prime is 142630723. The next prime is 142630727. The reversal of 142630726 is 627036241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142630723) 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 3 ways as a sum of consecutive naturals, for example, 5093941 + ... + 5093968.

It is an arithmetic number, because the mean of its divisors is an integer number (30563730).

Almost surely, 2142630726 is an apocalyptic number.

142630726 is a deficient number, since it is larger than the sum of its proper divisors (101879114).

142630726 is a wasteful number, since it uses less digits than its factorization.

142630726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10187918.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 142630726 is about 11942.8106407160. The cubic root of 142630726 is about 522.4816363745.

Adding to 142630726 its reverse (627036241), we get a palindrome (769666967).

The spelling of 142630726 in words is "one hundred forty-two million, six hundred thirty thousand, seven hundred twenty-six".

Divisors: 1 2 7 14 10187909 20375818 71315363 142630726