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13453154420 = 2251813716341
BaseRepresentation
bin11001000011101111…
…01101100001110100
31021201120111001110112
430201313231201310
5210023001420140
610102535442152
7654244632356
oct144167554164
937646431415
1013453154420
115783a56042
122735526358
131365234404
14918a090d6
1553b114c65
hex321ded874

13453154420 has 24 divisors (see below), whose sum is σ = 28407718248. Its totient is φ = 5351529600.

The previous prime is 13453154339. The next prime is 13453154443. The reversal of 13453154420 is 2445135431.

It can be written as a sum of positive squares in 4 ways, for example, as 478121956 + 12975032464 = 21866^2 + 113908^2 .

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, 1854551 + ... + 1861790.

It is an arithmetic number, because the mean of its divisors is an integer number (1183654927).

Almost surely, 213453154420 is an apocalyptic number.

13453154420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13453154420 is an abundant number, since it is smaller than the sum of its proper divisors (14954563828).

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

13453154420 is a wasteful number, since it uses less digits than its factorization.

13453154420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716531 (or 3716529 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 13453154420 its reverse (2445135431), we get a palindrome (15898289851).

The spelling of 13453154420 in words is "thirteen billion, four hundred fifty-three million, one hundred fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 3620 3716341 7432682 14865364 18581705 37163410 74326820 672657721 1345315442 2690630884 3363288605 6726577210 13453154420