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13540152152 = 231692519019
BaseRepresentation
bin11001001110000111…
…00101001101011000
31021221122011222220202
430213003211031120
5210212234332102
610115324241332
7656352252152
oct144703451530
937848158822
1013540152152
11581907679a
12275a6a0248
13137a274967
149263b3ad2
15543a9be02
hex3270e5358

13540152152 has 8 divisors (see below), whose sum is σ = 25387785300. Its totient is φ = 6770076072.

The previous prime is 13540152151. The next prime is 13540152161. The reversal of 13540152152 is 25125104531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×135401521522 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13540152151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 846259502 + ... + 846259517.

Almost surely, 213540152152 is an apocalyptic number.

It is an amenable number.

13540152152 is a deficient number, since it is larger than the sum of its proper divisors (11847633148).

13540152152 is a wasteful number, since it uses less digits than its factorization.

13540152152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692519025 (or 1692519021 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 13540152152 its reverse (25125104531), we get a palindrome (38665256683).

The spelling of 13540152152 in words is "thirteen billion, five hundred forty million, one hundred fifty-two thousand, one hundred fifty-two".

Divisors: 1 2 4 8 1692519019 3385038038 6770076076 13540152152