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131555472741 = 32711901121067
BaseRepresentation
bin111101010000101010…
…0010011010101100101
3110120120022211110002100
41322201110103111211
54123411200111431
6140234042202313
712335032032210
oct1724124232545
9416508743070
10131555472741
11508796a88a0
12215b57b3399
13c53721a1c4
14651dccc777
15364e6b94e6
hex1ea1513565

131555472741 has 48 divisors (see below), whose sum is σ = 236951290368. Its totient is φ = 68329677600.

The previous prime is 131555472721. The next prime is 131555472817. The reversal of 131555472741 is 147274555131.

131555472741 is a `hidden beast` number, since 1 + 31 + 5 + 5 + 547 + 2 + 74 + 1 = 666.

It is not a de Polignac number, because 131555472741 - 215 = 131555439973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131555472721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6234090 + ... + 6255156.

It is an arithmetic number, because the mean of its divisors is an integer number (4936485216).

Almost surely, 2131555472741 is an apocalyptic number.

131555472741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131555472741 is a deficient number, since it is larger than the sum of its proper divisors (105395817627).

131555472741 is a wasteful number, since it uses less digits than its factorization.

131555472741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30102 (or 30099 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The spelling of 131555472741 in words is "one hundred thirty-one billion, five hundred fifty-five million, four hundred seventy-two thousand, seven hundred forty-one".

Divisors: 1 3 7 9 11 21 33 63 77 99 231 693 9011 21067 27033 63077 63201 81099 99121 147469 189231 189603 231737 297363 442407 567693 693847 695211 892089 1327221 1622159 2081541 2085633 4866477 6244623 14599431 189834737 569504211 1328843159 1708512633 2088182107 3986529477 6264546321 11959588431 14617274749 18793638963 43851824247 131555472741