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11242491 = 3131731547
BaseRepresentation
bin101010111000…
…101111111011
3210011011210120
4222320233323
510334224431
61040544323
7164362641
oct52705773
923134716
1011242491
116389717
1239220a3
132438280
1416c9191
15ec1196
hexab8bfb

11242491 has 32 divisors (see below), whose sum is σ = 17676288. Its totient is φ = 6289920.

The previous prime is 11242481. The next prime is 11242501. The reversal of 11242491 is 19424211.

It is an interprime number because it is at equal distance from previous prime (11242481) and next prime (11242501).

It is not a de Polignac number, because 11242491 - 219 = 10718203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11242481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20280 + ... + 20826.

It is an arithmetic number, because the mean of its divisors is an integer number (552384).

Almost surely, 211242491 is an apocalyptic number.

11242491 is a deficient number, since it is larger than the sum of its proper divisors (6433797).

11242491 is a wasteful number, since it uses less digits than its factorization.

11242491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611.

The product of its digits is 576, while the sum is 24.

The square root of 11242491 is about 3352.9824037713. The cubic root of 11242491 is about 224.0203730938.

It can be divided in two parts, 1124249 and 1, that added together give a triangular number (1124250 = T1499).

The spelling of 11242491 in words is "eleven million, two hundred forty-two thousand, four hundred ninety-one".

Divisors: 1 3 13 17 31 39 51 93 221 403 527 547 663 1209 1581 1641 6851 7111 9299 16957 20553 21333 27897 50871 120887 220441 288269 362661 661323 864807 3747497 11242491