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10691929 = 17628937
BaseRepresentation
bin101000110010…
…010101011001
3202010012120101
4220302111121
510214120204
61021055401
7156610543
oct50622531
922105511
1010691929
116043006
1236b7561
1322a47b1
1415c4693
15e12ea4
hexa32559

10691929 has 4 divisors (see below), whose sum is σ = 11320884. Its totient is φ = 10062976.

The previous prime is 10691917. The next prime is 10691953. The reversal of 10691929 is 92919601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92919601 = 466319927.

It can be written as a sum of positive squares in 2 ways, for example, as 6365529 + 4326400 = 2523^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 10691929 - 27 = 10691801 is a prime.

It is a super-2 number, since 2×106919292 = 228634691482082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10691909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314452 + ... + 314485.

It is an arithmetic number, because the mean of its divisors is an integer number (2830221).

Almost surely, 210691929 is an apocalyptic number.

It is an amenable number.

10691929 is a deficient number, since it is larger than the sum of its proper divisors (628955).

10691929 is an equidigital number, since it uses as much as digits as its factorization.

10691929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628954.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 10691929 is about 3269.8515256813. The cubic root of 10691929 is about 220.3021262221.

The spelling of 10691929 in words is "ten million, six hundred ninety-one thousand, nine hundred twenty-nine".

Divisors: 1 17 628937 10691929