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12882077440 = 28510064123
BaseRepresentation
bin10111111111101010…
…01110011100000000
31020020202220100010021
423333311032130000
5202340302434230
65530135343224
7634141565041
oct137765163400
936222810107
1012882077440
1155106624a1
1225b6221b14
1312a3b2453b
148a2c308c8
15505e0bc7a
hex2ffd4e700

12882077440 has 36 divisors (see below), whose sum is σ = 30856604184. Its totient is φ = 5152830464.

The previous prime is 12882077431. The next prime is 12882077447. The reversal of 12882077440 is 4477028821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12882077447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5030782 + ... + 5033341.

It is an arithmetic number, because the mean of its divisors is an integer number (857127894).

Almost surely, 212882077440 is an apocalyptic number.

12882077440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12882077440 is an abundant number, since it is smaller than the sum of its proper divisors (17974526744).

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

12882077440 is an equidigital number, since it uses as much as digits as its factorization.

12882077440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10064144 (or 10064130 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 43.

The spelling of 12882077440 in words is "twelve billion, eight hundred eighty-two million, seventy-seven thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 10064123 20128246 40256492 50320615 80512984 100641230 161025968 201282460 322051936 402564920 644103872 805129840 1288207744 1610259680 2576415488 3220519360 6441038720 12882077440