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13530311355 = 3511247158611
BaseRepresentation
bin11001001100111100…
…00010101010111011
31021220221200000212210
430212132002222323
5210202224430410
610114333310203
7656202514611
oct144636025273
937827600783
1013530311355
115813565200
122757335363
13137820a6c2
14924d716b1
15542ca6220
hex326782abb

13530311355 has 48 divisors (see below), whose sum is σ = 24301896192. Its totient is φ = 6420532800.

The previous prime is 13530311351. The next prime is 13530311359. The reversal of 13530311355 is 55311303531.

It is an interprime number because it is at equal distance from previous prime (13530311351) and next prime (13530311359).

It is not a de Polignac number, because 13530311355 - 22 = 13530311351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13530311351) 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, 6000 + ... + 164610.

It is an arithmetic number, because the mean of its divisors is an integer number (506289504).

Almost surely, 213530311355 is an apocalyptic number.

13530311355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13530311355 is a deficient number, since it is larger than the sum of its proper divisors (10771584837).

13530311355 is a wasteful number, since it uses less digits than its factorization.

13530311355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158688 (or 158677 counting only the distinct ones).

The product of its (nonzero) digits is 10125, while the sum is 30.

Adding to 13530311355 its reverse (55311303531), we get a palindrome (68841614886).

The spelling of 13530311355 in words is "thirteen billion, five hundred thirty million, three hundred eleven thousand, three hundred fifty-five".

Divisors: 1 3 5 11 15 33 47 55 121 141 165 235 363 517 605 705 1551 1815 2585 5687 7755 17061 28435 85305 158611 475833 793055 1744721 2379165 5234163 7454717 8723605 19191931 22364151 26170815 37273585 57575793 82001887 95959655 111820755 246005661 287878965 410009435 902020757 1230028305 2706062271 4510103785 13530311355