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14811940 = 22511135179
BaseRepresentation
bin111000100000…
…001100100100
31000212112011101
4320200030210
512242440230
61245245444
7236620333
oct70401444
930775141
1014811940
1183a7480
124b63884
1330b7b80
141d77d1a
151478aca
hexe20324

14811940 has 48 divisors (see below), whose sum is σ = 36550080. Its totient is φ = 4970880.

The previous prime is 14811911. The next prime is 14811961. The reversal of 14811940 is 4911841.

It is a junction number, because it is equal to n+sod(n) for n = 14811899 and 14811908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271 + ... + 5449.

It is an arithmetic number, because the mean of its divisors is an integer number (761460).

Almost surely, 214811940 is an apocalyptic number.

14811940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14811940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18275040).

14811940 is an abundant number, since it is smaller than the sum of its proper divisors (21738140).

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

14811940 is a wasteful number, since it uses less digits than its factorization.

14811940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5210 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 14811940 is about 3848.6283270797. The cubic root of 14811940 is about 245.5862125192.

Subtracting from 14811940 its reverse (4911841), we obtain a palindrome (9900099).

It can be divided in two parts, 14811 and 940, that added together give a palindrome (15751).

The spelling of 14811940 in words is "fourteen million, eight hundred eleven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 5179 10358 20716 25895 51790 56969 67327 103580 113938 134654 227876 269308 284845 336635 569690 673270 740597 1139380 1346540 1481194 2962388 3702985 7405970 14811940