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10742047 = 25142797
BaseRepresentation
bin101000111110…
…100100011111
3202012202022121
4220332210133
510222221142
61022123411
7160206631
oct50764437
922182277
1010742047
116077728
123720567
1322c1554
1415d8a51
15e22c67
hexa3e91f

10742047 has 4 divisors (see below), whose sum is σ = 10785096. Its totient is φ = 10699000.

The previous prime is 10742021. The next prime is 10742077. The reversal of 10742047 is 74024701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74024701 = 731014037.

It is a cyclic number.

It is not a de Polignac number, because 10742047 - 211 = 10739999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10742077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21148 + ... + 21649.

It is an arithmetic number, because the mean of its divisors is an integer number (2696274).

Almost surely, 210742047 is an apocalyptic number.

10742047 is a deficient number, since it is larger than the sum of its proper divisors (43049).

10742047 is an equidigital number, since it uses as much as digits as its factorization.

10742047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43048.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 10742047 is about 3277.5062166226. The cubic root of 10742047 is about 220.6458089873.

Adding to 10742047 its reverse (74024701), we get a palindrome (84766748).

The spelling of 10742047 in words is "ten million, seven hundred forty-two thousand, forty-seven".

Divisors: 1 251 42797 10742047