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1442500123 = 61173136691
BaseRepresentation
bin101010111111010…
…1100111000011011
310201112022121011111
41111332230320123
510423240000443
6355045441151
750514022501
oct12576547033
93645277144
101442500123
11680287769
123431101b7
1319cb0c28c
14d9816671
158698c69d
hex55face1b

1442500123 has 8 divisors (see below), whose sum is σ = 1474633296. Its totient is φ = 1410640800.

The previous prime is 1442500069. The next prime is 1442500139. The reversal of 1442500123 is 3210052441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1442500123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442500094 and 1442500103.

It is not an unprimeable number, because it can be changed into a prime (1442500183) 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 7 ways as a sum of consecutive naturals, for example, 57793 + ... + 78898.

It is an arithmetic number, because the mean of its divisors is an integer number (184329162).

Almost surely, 21442500123 is an apocalyptic number.

1442500123 is a deficient number, since it is larger than the sum of its proper divisors (32133173).

1442500123 is a wasteful number, since it uses less digits than its factorization.

1442500123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136925.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1442500123 is about 37980.2596489282. The cubic root of 1442500123 is about 1129.8963861975.

Adding to 1442500123 its reverse (3210052441), we get a palindrome (4652552564).

The spelling of 1442500123 in words is "one billion, four hundred forty-two million, five hundred thousand, one hundred twenty-three".

Divisors: 1 61 173 10553 136691 8338151 23647543 1442500123