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13520148 = 2232938851
BaseRepresentation
bin110011100100…
…110100010100
3221102220011020
4303210310110
511430121043
61201441140
7222630225
oct63446424
927386136
1013520148
1176a4984
1246401b0
132a54bb5
141b1d24c
1512c0e83
hexce4d14

13520148 has 24 divisors (see below), whose sum is σ = 32635680. Its totient is φ = 4351200.

The previous prime is 13520147. The next prime is 13520149. The reversal of 13520148 is 84102531.

It is an interprime number because it is at equal distance from previous prime (13520147) and next prime (13520149).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520147) 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 7 ways as a sum of consecutive naturals, for example, 19078 + ... + 19773.

It is an arithmetic number, because the mean of its divisors is an integer number (1359820).

Almost surely, 213520148 is an apocalyptic number.

It is an amenable number.

13520148 is an abundant number, since it is smaller than the sum of its proper divisors (19115532).

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

13520148 is a wasteful number, since it uses less digits than its factorization.

13520148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38887 (or 38885 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 13520148 is about 3676.9753874618. The cubic root of 13520148 is about 238.2285543087.

Adding to 13520148 its reverse (84102531), we get a palindrome (97622679).

The spelling of 13520148 in words is "thirteen million, five hundred twenty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 38851 77702 116553 155404 233106 466212 1126679 2253358 3380037 4506716 6760074 13520148