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142575419 = 789228853
BaseRepresentation
bin10000111111110…
…00011100111011
3100221021120201002
420133320130323
5242444403134
622051515215
73350604530
oct1037703473
9327246632
10142575419
1173531028
123b8b8b0b
13236cc66c
1414d14d87
15c7b487e
hex87f873b

142575419 has 8 divisors (see below), whose sum is σ = 164774880. Its totient is φ = 120833856.

The previous prime is 142575371. The next prime is 142575421. The reversal of 142575419 is 914575241.

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-142575419 is a prime.

It is a super-2 number, since 2×1425754192 = 40655500206051122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142575019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113804 + ... + 115049.

It is an arithmetic number, because the mean of its divisors is an integer number (20596860).

Almost surely, 2142575419 is an apocalyptic number.

142575419 is a deficient number, since it is larger than the sum of its proper divisors (22199461).

142575419 is an equidigital number, since it uses as much as digits as its factorization.

142575419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228949.

The product of its digits is 50400, while the sum is 38.

The square root of 142575419 is about 11940.4949227408. The cubic root of 142575419 is about 522.4140945282.

The spelling of 142575419 in words is "one hundred forty-two million, five hundred seventy-five thousand, four hundred nineteen".

Divisors: 1 7 89 623 228853 1601971 20367917 142575419