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10397661 = 36415407
BaseRepresentation
bin100111101010…
…011111011101
3201120020220120
4213222133131
510130211121
61010505153
7154243611
oct47523735
921506816
1010397661
115961a0a
1235951b9
132200881
141549341
15da5bc6
hex9ea7dd

10397661 has 8 divisors (see below), whose sum is σ = 13887744. Its totient is φ = 6919680.

The previous prime is 10397627. The next prime is 10397671. The reversal of 10397661 is 16679301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10397661 - 211 = 10395613 is a prime.

It is a super-2 number, since 2×103976612 = 216222708541842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10397671) 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, 781 + ... + 4626.

It is an arithmetic number, because the mean of its divisors is an integer number (1735968).

Almost surely, 210397661 is an apocalyptic number.

It is an amenable number.

10397661 is a deficient number, since it is larger than the sum of its proper divisors (3490083).

10397661 is an equidigital number, since it uses as much as digits as its factorization.

10397661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 10397661 is about 3224.5404323717. The cubic root of 10397661 is about 218.2622114882.

The spelling of 10397661 in words is "ten million, three hundred ninety-seven thousand, six hundred sixty-one".

Divisors: 1 3 641 1923 5407 16221 3465887 10397661