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13148538 = 2313212967
BaseRepresentation
bin110010001010…
…000101111010
3220202000101220
4302022011322
511331223123
61145452510
7216521634
oct62120572
926660356
1013148538
117470767
1244a1136
132954a00
141a63a54
15124ace3
hexc8a17a

13148538 has 24 divisors (see below), whose sum is σ = 28477728. Its totient is φ = 4045392.

The previous prime is 13148537. The next prime is 13148539. The reversal of 13148538 is 83584131.

It is an interprime number because it is at equal distance from previous prime (13148537) and next prime (13148539).

It is a junction number, because it is equal to n+sod(n) for n = 13148499 and 13148508.

It is not an unprimeable number, because it can be changed into a prime (13148533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5470 + ... + 7497.

It is an arithmetic number, because the mean of its divisors is an integer number (1186572).

Almost surely, 213148538 is an apocalyptic number.

13148538 is an abundant number, since it is smaller than the sum of its proper divisors (15329190).

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

13148538 is a wasteful number, since it uses less digits than its factorization.

13148538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12998 (or 12985 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 13148538 is about 3626.0912840137. The cubic root of 13148538 is about 236.0256244320.

The spelling of 13148538 in words is "thirteen million, one hundred forty-eight thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 13 26 39 78 169 338 507 1014 12967 25934 38901 77802 168571 337142 505713 1011426 2191423 4382846 6574269 13148538