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11311470 = 2325125683
BaseRepresentation
bin101011001001…
…100101101110
3210021200102100
4223021211232
510343431340
61042235530
7165101022
oct53114556
923250370
1011311470
116426525
123955ba6
1324607a1
141706382
15ed6830
hexac996e

11311470 has 24 divisors (see below), whose sum is σ = 29410056. Its totient is φ = 3016368.

The previous prime is 11311463. The next prime is 11311471. The reversal of 11311470 is 7411311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62752 + ... + 62931.

It is an arithmetic number, because the mean of its divisors is an integer number (1225419).

Almost surely, 211311470 is an apocalyptic number.

11311470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311470 is an abundant number, since it is smaller than the sum of its proper divisors (18098586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311470 is a wasteful number, since it uses less digits than its factorization.

11311470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125696 (or 125693 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 11311470 is about 3363.2528896888. The cubic root of 11311470 is about 224.4776028701.

Adding to 11311470 its reverse (7411311), we get a palindrome (18722781).

It can be divided in two parts, 11311 and 470, that added together give a triangular number (11781 = T153).

The spelling of 11311470 in words is "eleven million, three hundred eleven thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 125683 251366 377049 628415 754098 1131147 1256830 1885245 2262294 3770490 5655735 11311470