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13011969808134 = 2321171843914731
BaseRepresentation
bin1011110101011001010111…
…0101101001011100000110
31201001221011112210210011200
42331112111311221130012
53201142003232330014
643401341051043330
72512040512320243
oct275262565513406
951057145723150
1013011969808134
11416738880a810
121561982440546
1373503c7ab81b
1432dad5a245ca
15178710441a09
hexbd595d69706

13011969808134 has 48 divisors (see below), whose sum is σ = 30756026718144. Its totient is φ = 3942961959600.

The previous prime is 13011969808129. The next prime is 13011969808141. The reversal of 13011969808134 is 43180896911031.

It is a super-2 number, since 2×130119698081342 (a number of 27 digits) contains 22 as substring.

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, 13767549 + ... + 14682279.

It is an arithmetic number, because the mean of its divisors is an integer number (640750556628).

Almost surely, 213011969808134 is an apocalyptic number.

13011969808134 is an abundant number, since it is smaller than the sum of its proper divisors (17744056910010).

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

13011969808134 is a wasteful number, since it uses less digits than its factorization.

13011969808134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986593 (or 986590 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 13011969808134 in words is "thirteen trillion, eleven billion, nine hundred sixty-nine million, eight hundred eight thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 71843 143686 215529 431058 646587 790273 914731 1293174 1580546 1829462 2370819 2744193 4741638 5488386 7112457 8232579 10062041 14224914 16465158 20124082 30186123 60372246 90558369 181116738 65717019233 131434038466 197151057699 394302115398 591453173097 722887211563 1182906346194 1445774423126 2168661634689 4337323269378 6505984904067 13011969808134