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10202149 = 471311657
BaseRepresentation
bin100110111010…
…110000100101
3201012022201101
4212322300211
510102432044
61002400101
7152500606
oct46726045
921168641
1010202149
115839031
123500031
132162899
1414d7dad
15d67cd4
hex9bac25

10202149 has 8 divisors (see below), whose sum is σ = 10505088. Its totient is φ = 9902880.

The previous prime is 10202119. The next prime is 10202177. The reversal of 10202149 is 94120201.

10202149 is digitally balanced in base 2 and base 3, because in such bases 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 10202149 - 25 = 10202117 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 (10202119) 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, 5329 + ... + 6985.

It is an arithmetic number, because the mean of its divisors is an integer number (1313136).

Almost surely, 210202149 is an apocalyptic number.

It is an amenable number.

10202149 is a deficient number, since it is larger than the sum of its proper divisors (302939).

10202149 is a wasteful number, since it uses less digits than its factorization.

10202149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 10202149 is about 3194.0803058157. The cubic root of 10202149 is about 216.8855179866.

The spelling of 10202149 in words is "ten million, two hundred two thousand, one hundred forty-nine".

Divisors: 1 47 131 1657 6157 77879 217067 10202149