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10242147 = 310731907
BaseRepresentation
bin100111000100…
…100001100011
3201021100120210
4213010201203
510110222042
61003305203
7153025326
oct47044143
921240523
1010242147
115866093
12351b203
132177b56
1415087bd
15d74a9c
hex9c4863

10242147 has 8 divisors (see below), whose sum is σ = 13784256. Its totient is φ = 6764072.

The previous prime is 10242137. The next prime is 10242149. The reversal of 10242147 is 74124201.

It is a happy number.

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 10242147 - 24 = 10242131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10242149) 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, 15633 + ... + 16274.

It is an arithmetic number, because the mean of its divisors is an integer number (1723032).

Almost surely, 210242147 is an apocalyptic number.

10242147 is a deficient number, since it is larger than the sum of its proper divisors (3542109).

10242147 is a wasteful number, since it uses less digits than its factorization.

10242147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32017.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 10242147 is about 3200.3354511676. The cubic root of 10242147 is about 217.1685849718.

Adding to 10242147 its reverse (74124201), we get a palindrome (84366348).

The spelling of 10242147 in words is "ten million, two hundred forty-two thousand, one hundred forty-seven".

Divisors: 1 3 107 321 31907 95721 3414049 10242147