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13811147480 = 23513171562347
BaseRepresentation
bin11001101110011010…
…10110001011011000
31022122112002222121202
430313031112023120
5211241123204410
610202244453332
7666152550044
oct146715261330
938575088552
1013811147480
11594803a579
1228153aa248
1313c1458820
14950397024
1555c77bca5
hex3373562d8

13811147480 has 64 divisors (see below), whose sum is σ = 35434052640. Its totient is φ = 4799526912.

The previous prime is 13811147477. The next prime is 13811147501. The reversal of 13811147480 is 8474111831.

It is a super-3 number, since 3×138111474803 (a number of 31 digits) contains 333 as substring.

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, 772334 + ... + 790013.

Almost surely, 213811147480 is an apocalyptic number.

13811147480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13811147480 is an abundant number, since it is smaller than the sum of its proper divisors (21622905160).

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

13811147480 is a wasteful number, since it uses less digits than its factorization.

13811147480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562388 (or 1562384 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The spelling of 13811147480 in words is "thirteen billion, eight hundred eleven million, one hundred forty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 17 20 26 34 40 52 65 68 85 104 130 136 170 221 260 340 442 520 680 884 1105 1768 2210 4420 8840 1562347 3124694 6249388 7811735 12498776 15623470 20310511 26559899 31246940 40621022 53119798 62493880 81242044 101552555 106239596 132799495 162484088 203105110 212479192 265598990 345278687 406210220 531197980 690557374 812420440 1062395960 1381114748 1726393435 2762229496 3452786870 6905573740 13811147480