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10491201 = 34718503
BaseRepresentation
bin101000000001…
…010101000001
3201202000020000
4220001111001
510141204301
61012510213
7155113410
oct50012501
921660200
1010491201
115a16216
12361b369
132234316
141571477
15dc3786
hexa01541

10491201 has 20 divisors (see below), whose sum is σ = 17911872. Its totient is φ = 5994648.

The previous prime is 10491181. The next prime is 10491233. The reversal of 10491201 is 10219401.

It is not a de Polignac number, because 10491201 - 26 = 10491137 is a prime.

It is a super-2 number, since 2×104912012 = 220130596844802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10491241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8685 + ... + 9818.

Almost surely, 210491201 is an apocalyptic number.

It is an amenable number.

10491201 is a deficient number, since it is larger than the sum of its proper divisors (7420671).

10491201 is an equidigital number, since it uses as much as digits as its factorization.

10491201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18522 (or 18513 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 10491201 is about 3239.0123494670. The cubic root of 10491201 is about 218.9147726164.

The spelling of 10491201 in words is "ten million, four hundred ninety-one thousand, two hundred one".

Divisors: 1 3 7 9 21 27 63 81 189 567 18503 55509 129521 166527 388563 499581 1165689 1498743 3497067 10491201