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10191145 = 513115559
BaseRepresentation
bin100110111000…
…000100101001
3201011202121211
4212320010221
510102104040
61002233121
7152423536
oct46700451
921152554
1010191145
115830838
1234b57a1
13215a883
1414d3d8d
15d648ea
hex9b8129

10191145 has 8 divisors (see below), whose sum is σ = 12323520. Its totient is φ = 8090160.

The previous prime is 10191133. The next prime is 10191161. The reversal of 10191145 is 54119101.

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

It is not a de Polignac number, because 10191145 - 27 = 10191017 is a prime.

It is a super-2 number, since 2×101911452 = 207718872822050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7125 + ... + 8434.

It is an arithmetic number, because the mean of its divisors is an integer number (1540440).

Almost surely, 210191145 is an apocalyptic number.

It is an amenable number.

10191145 is a deficient number, since it is larger than the sum of its proper divisors (2132375).

10191145 is a wasteful number, since it uses less digits than its factorization.

10191145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15695.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 10191145 is about 3192.3572795037. The cubic root of 10191145 is about 216.8075126298.

The spelling of 10191145 in words is "ten million, one hundred ninety-one thousand, one hundred forty-five".

Divisors: 1 5 131 655 15559 77795 2038229 10191145