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20114940 = 2235335249
BaseRepresentation
bin100110010111…
…0110111111100
31101211221111210
41030232313330
520122134230
61555044420
7332655066
oct114566774
941757453
1020114940
111039971a
1268a0710
134223841
142958736
151b74eb0
hex132edfc

20114940 has 24 divisors (see below), whose sum is σ = 56322000. Its totient is φ = 5363968.

The previous prime is 20114923. The next prime is 20114953. The reversal of 20114940 is 4941102.

It is a super-2 number, since 2×201149402 = 809221622407200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167565 + ... + 167684.

It is an arithmetic number, because the mean of its divisors is an integer number (2346750).

Almost surely, 220114940 is an apocalyptic number.

20114940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20114940 is an abundant number, since it is smaller than the sum of its proper divisors (36207060).

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

20114940 is a wasteful number, since it uses less digits than its factorization.

20114940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335261 (or 335259 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20114940 is about 4484.9682273122. The cubic root of 20114940 is about 271.9607606313.

It can be divided in two parts, 20 and 114940, that added together give a triangular number (114960 = T479).

The spelling of 20114940 in words is "twenty million, one hundred fourteen thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 335249 670498 1005747 1340996 1676245 2011494 3352490 4022988 5028735 6704980 10057470 20114940