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10121385 = 35674759
BaseRepresentation
bin100110100111…
…000010101001
3201001012221010
4212213002221
510042341020
61000534133
7152013261
oct46470251
921035833
1010121385
11579338a
123481349
132134bb1
1414b67a1
15d4dde0
hex9a70a9

10121385 has 8 divisors (see below), whose sum is σ = 16194240. Its totient is φ = 5398064.

The previous prime is 10121359. The next prime is 10121393. The reversal of 10121385 is 58312101.

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

It is a cyclic number.

It is not a de Polignac number, because 10121385 - 27 = 10121257 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 337365 + ... + 337394.

It is an arithmetic number, because the mean of its divisors is an integer number (2024280).

Almost surely, 210121385 is an apocalyptic number.

10121385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10121385 is a deficient number, since it is larger than the sum of its proper divisors (6072855).

10121385 is an equidigital number, since it uses as much as digits as its factorization.

10121385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674767.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 10121385 is about 3181.4124221798. The cubic root of 10121385 is about 216.3116856557.

Adding to 10121385 its reverse (58312101), we get a palindrome (68433486).

The spelling of 10121385 in words is "ten million, one hundred twenty-one thousand, three hundred eighty-five".

Divisors: 1 3 5 15 674759 2024277 3373795 10121385