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13144005740 = 2251367480761
BaseRepresentation
bin11000011110111000…
…11001110001101100
31020221000202200012102
430033130121301230
5203404331140430
610012133354232
7643502130305
oct141734316154
936830680172
1013144005740
1156354a3068
122669a98978
1313161823b8
148c99337ac
1551ddea345
hex30f719c6c

13144005740 has 24 divisors (see below), whose sum is σ = 27622661472. Its totient is φ = 5253745280.

The previous prime is 13144005739. The next prime is 13144005769. The reversal of 13144005740 is 4750044131.

It is a happy 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, 213041 + ... + 267720.

It is an arithmetic number, because the mean of its divisors is an integer number (1150944228).

Almost surely, 213144005740 is an apocalyptic number.

13144005740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144005740 is an abundant number, since it is smaller than the sum of its proper divisors (14478655732).

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

13144005740 is a wasteful number, since it uses less digits than its factorization.

13144005740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482137 (or 482135 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 13144005740 its reverse (4750044131), we get a palindrome (17894049871).

The spelling of 13144005740 in words is "thirteen billion, one hundred forty-four million, five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1367 2734 5468 6835 13670 27340 480761 961522 1923044 2403805 4807610 9615220 657200287 1314400574 2628801148 3286001435 6572002870 13144005740