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13305114452 = 2272894571669
BaseRepresentation
bin11000110010000101…
…11110111101010100
31021100020220211210202
430121002332331110
5204222102130302
610040130440032
7650466415100
oct143102767524
937306824722
1013305114452
115708432463
1226b3a33018
1313406706b6
149030b0900
1552d121202
hex3190bef54

13305114452 has 72 divisors (see below), whose sum is σ = 27466122600. Its totient is φ = 5622414336.

The previous prime is 13305114443. The next prime is 13305114461. The reversal of 13305114452 is 25441150331.

It is an interprime number because it is at equal distance from previous prime (13305114443) and next prime (13305114461).

It can be written as a sum of positive squares in 4 ways, for example, as 2496601156 + 10808513296 = 49966^2 + 103964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7971074 + ... + 7972742.

It is an arithmetic number, because the mean of its divisors is an integer number (381473925).

Almost surely, 213305114452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13305114452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13733061300).

13305114452 is an abundant number, since it is smaller than the sum of its proper divisors (14161008148).

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

13305114452 is a wasteful number, since it uses less digits than its factorization.

13305114452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233 (or 2224 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 13305114452 its reverse (25441150331), we get a palindrome (38746264783).

The spelling of 13305114452 in words is "thirteen billion, three hundred five million, one hundred fourteen thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 49 89 98 178 196 356 457 623 914 1246 1669 1828 2492 3199 3338 4361 6398 6676 8722 11683 12796 17444 22393 23366 40673 44786 46732 81346 81781 89572 148541 162692 163562 284711 297082 327124 569422 594164 762733 1039787 1138844 1525466 1992977 2079574 3050932 3985954 4159148 5339131 7278509 7971908 10678262 14557018 21356524 29114036 37373917 67883237 74747834 135766474 149495668 271532948 475182659 950365318 1900730636 3326278613 6652557226 13305114452