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11298831 = 31092317
BaseRepresentation
bin101011000110…
…100000001111
3210021001002020
4223012200033
510343030311
61042101223
7165016125
oct53064017
923231066
1011298831
116417a85
12394a813
132457acb
141701915
15ed2c06
hexac680f

11298831 has 12 divisors (see below), whose sum is σ = 15252552. Its totient is φ = 7439904.

The previous prime is 11298827. The next prime is 11298841. The reversal of 11298831 is 13889211.

It is not a de Polignac number, because 11298831 - 22 = 11298827 is a prime.

It is a super-2 number, since 2×112988312 = 255327163933122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11298792 and 11298801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11298811) 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 11 ways as a sum of consecutive naturals, for example, 35485 + ... + 35801.

It is an arithmetic number, because the mean of its divisors is an integer number (1271046).

Almost surely, 211298831 is an apocalyptic number.

11298831 is a deficient number, since it is larger than the sum of its proper divisors (3953721).

11298831 is an equidigital number, since it uses as much as digits as its factorization.

11298831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 429 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 11298831 is about 3361.3733800338. The cubic root of 11298831 is about 224.3939641743.

The spelling of 11298831 in words is "eleven million, two hundred ninety-eight thousand, eight hundred thirty-one".

Divisors: 1 3 109 317 327 951 11881 34553 35643 103659 3766277 11298831