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9742201 = 7792223
BaseRepresentation
bin100101001010…
…011101111001
3200022221210021
4211022131321
54443222301
6544450441
7145543630
oct45123571
920287707
109742201
115554507
123319a21
132031421
141418517
15cc68a1
hex94a779

9742201 has 12 divisors (see below), whose sum is σ = 11327232. Its totient is φ = 8207784.

The previous prime is 9742199. The next prime is 9742217. The reversal of 9742201 is 1022479.

It is not a de Polignac number, because 9742201 - 21 = 9742199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9745201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43576 + ... + 43798.

It is an arithmetic number, because the mean of its divisors is an integer number (943936).

Almost surely, 29742201 is an apocalyptic number.

9742201 is the 1561-st decagonal number.

It is an amenable number.

9742201 is a deficient number, since it is larger than the sum of its proper divisors (1585031).

9742201 is an equidigital number, since it uses as much as digits as its factorization.

9742201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 9742201 is about 3121.2499098919. The cubic root of 9742201 is about 213.5759574116.

The spelling of 9742201 in words is "nine million, seven hundred forty-two thousand, two hundred one".

Divisors: 1 7 79 223 553 1561 6241 17617 43687 123319 1391743 9742201