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11207140 = 225780051
BaseRepresentation
bin101010110000…
…000111100100
3210002101022021
4222300013210
510332112030
61040112524
7164154610
oct52600744
923071267
1011207140
1163650aa
123905744
132425159
1416ba340
15eb597a
hexab01e4

11207140 has 24 divisors (see below), whose sum is σ = 26897472. Its totient is φ = 3842400.

The previous prime is 11207129. The next prime is 11207149. The reversal of 11207140 is 4170211.

It is not an unprimeable number, because it can be changed into a prime (11207149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39886 + ... + 40165.

It is an arithmetic number, because the mean of its divisors is an integer number (1120728).

Almost surely, 211207140 is an apocalyptic number.

11207140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11207140 is an abundant number, since it is smaller than the sum of its proper divisors (15690332).

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

11207140 is a wasteful number, since it uses less digits than its factorization.

11207140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80067 (or 80065 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 11207140 is about 3347.7066777124. The cubic root of 11207140 is about 223.7853225967.

Adding to 11207140 its reverse (4170211), we get a palindrome (15377351).

The spelling of 11207140 in words is "eleven million, two hundred seven thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 80051 160102 320204 400255 560357 800510 1120714 1601020 2241428 2801785 5603570 11207140