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15142001 = 73136911
BaseRepresentation
bin111001110000…
…110001110001
31001111021220212
4321300301301
512334021001
61300313505
7242463530
oct71606161
931437825
1015142001
118602456
1250a2895
1331a2184
142022317
1514e17bb
hexe70c71

15142001 has 8 divisors (see below), whose sum is σ = 17362944. Its totient is φ = 12935520.

The previous prime is 15141983. The next prime is 15142013. The reversal of 15142001 is 10024151.

15142001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15142001 - 210 = 15140977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15142051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265 + ... + 5646.

It is an arithmetic number, because the mean of its divisors is an integer number (2170368).

Almost surely, 215142001 is an apocalyptic number.

It is an amenable number.

15142001 is a deficient number, since it is larger than the sum of its proper divisors (2220943).

15142001 is an equidigital number, since it uses as much as digits as its factorization.

15142001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 15142001 is about 3891.2724140055. The cubic root of 15142001 is about 247.3969968966.

Adding to 15142001 its reverse (10024151), we get a palindrome (25166152).

The spelling of 15142001 in words is "fifteen million, one hundred forty-two thousand, one".

Divisors: 1 7 313 2191 6911 48377 2163143 15142001