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10242557 = 134373251
BaseRepresentation
bin100111000100…
…100111111101
3201021101010222
4213010213331
510110230212
61003311125
7153026453
oct47044775
921241128
1010242557
115866426
12351b4a5
1321780b0
1415089d3
15d74c72
hex9c49fd

10242557 has 16 divisors (see below), whose sum is σ = 11487168. Its totient is φ = 9072000.

The previous prime is 10242553. The next prime is 10242581. The reversal of 10242557 is 75524201.

10242557 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10242557 - 22 = 10242553 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 (10242553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40682 + ... + 40932.

It is an arithmetic number, because the mean of its divisors is an integer number (717948).

Almost surely, 210242557 is an apocalyptic number.

It is an amenable number.

10242557 is a deficient number, since it is larger than the sum of its proper divisors (1244611).

10242557 is a wasteful number, since it uses less digits than its factorization.

10242557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 10242557 is about 3200.3995063117. The cubic root of 10242557 is about 217.1714827344.

Adding to 10242557 its reverse (75524201), we get a palindrome (85766758).

The spelling of 10242557 in words is "ten million, two hundred forty-two thousand, five hundred fifty-seven".

Divisors: 1 13 43 73 251 559 949 3139 3263 10793 18323 40807 140309 238199 787889 10242557