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10691197 = 112149593
BaseRepresentation
bin101000110010…
…001001111101
3202010011120021
4220302021331
510214104242
61021052141
7156605446
oct50621175
922104507
1010691197
116042500
1236b7051
1322a436a
1415c42cd
15e12b67
hexa3227d

10691197 has 12 divisors (see below), whose sum is σ = 11850300. Its totient is φ = 9637760.

The previous prime is 10691183. The next prime is 10691237. The reversal of 10691197 is 79119601.

10691197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3663396 + 7027801 = 1914^2 + 2651^2 .

It is not a de Polignac number, because 10691197 - 211 = 10689149 is a prime.

It is a super-4 number, since 4×106911974 (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10691117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17733 + ... + 18325.

It is an arithmetic number, because the mean of its divisors is an integer number (987525).

Almost surely, 210691197 is an apocalyptic number.

It is an amenable number.

10691197 is a deficient number, since it is larger than the sum of its proper divisors (1159103).

10691197 is a wasteful number, since it uses less digits than its factorization.

10691197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 10691197 is about 3269.7395920776. The cubic root of 10691197 is about 220.2970986031.

The spelling of 10691197 in words is "ten million, six hundred ninety-one thousand, one hundred ninety-seven".

Divisors: 1 11 121 149 593 1639 6523 18029 71753 88357 971927 10691197