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13523302157 = 234323335861
BaseRepresentation
bin11001001100000110…
…10011011100001101
31021220110110221001212
430212003103130031
5210143431132112
610113523144205
7656056112621
oct144603233415
937813427055
1013523302157
11580a608082
122754b15065
131376925251
14924069181
1554236e522
hex3260d370d

13523302157 has 16 divisors (see below), whose sum is σ = 14448094848. Its totient is φ = 12626940480.

The previous prime is 13523302123. The next prime is 13523302159. The reversal of 13523302157 is 75120332531.

It is a cyclic number.

It is not a de Polignac number, because 13523302157 - 28 = 13523301901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13523302159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2304407 + ... + 2310267.

It is an arithmetic number, because the mean of its divisors is an integer number (903005928).

Almost surely, 213523302157 is an apocalyptic number.

It is an amenable number.

13523302157 is a deficient number, since it is larger than the sum of its proper divisors (924792691).

13523302157 is a wasteful number, since it uses less digits than its factorization.

13523302157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8260.

The product of its (nonzero) digits is 18900, while the sum is 32.

Adding to 13523302157 its reverse (75120332531), we get a palindrome (88643634688).

The spelling of 13523302157 in words is "thirteen billion, five hundred twenty-three million, three hundred two thousand, one hundred fifty-seven".

Divisors: 1 23 43 989 2333 5861 53659 100319 134803 252023 2307337 5796529 13673713 314495399 587969659 13523302157