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13441220020 = 2252774575309
BaseRepresentation
bin11001000010010100…
…01011110110110100
31021200202000201112201
430201022023312310
5210011423020040
610101431554244
7654041325244
oct144112136664
937622021481
1013441220020
1157782445a8
12273152b984
131362916237
149171bdb24
1553a058a9a
hex32128bdb4

13441220020 has 48 divisors (see below), whose sum is σ = 28395798480. Its totient is φ = 5344349184.

The previous prime is 13441219999. The next prime is 13441220041. The reversal of 13441220020 is 2002214431.

It is an interprime number because it is at equal distance from previous prime (13441219999) and next prime (13441220041).

It can be written as a sum of positive squares in 8 ways, for example, as 2122813476 + 11318406544 = 46074^2 + 106388^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13441220020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2529126 + ... + 2534434.

It is an arithmetic number, because the mean of its divisors is an integer number (591579135).

Almost surely, 213441220020 is an apocalyptic number.

13441220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13441220020 is an abundant number, since it is smaller than the sum of its proper divisors (14954578460).

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

13441220020 is a wasteful number, since it uses less digits than its factorization.

13441220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052 (or 6050 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 13441220020 its reverse (2002214431), we get a palindrome (15443434451).

The spelling of 13441220020 in words is "thirteen billion, four hundred forty-one million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 277 457 554 914 1108 1385 1828 2285 2770 4570 5309 5540 9140 10618 21236 26545 53090 106180 126589 253178 506356 632945 1265890 1470593 2426213 2531780 2941186 4852426 5882372 7352965 9704852 12131065 14705930 24262130 29411860 48524260 672061001 1344122002 2688244004 3360305005 6720610010 13441220020