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13770132 = 2231147511
BaseRepresentation
bin110100100001…
…110110010100
3221220121001220
4310201312110
512011121012
61211050340
7225021105
oct64416624
927817056
1013770132
117855782
1247409b0
132b1190c
141b863ac
15132008c
hexd21d94

13770132 has 12 divisors (see below), whose sum is σ = 32130336. Its totient is φ = 4590040.

The previous prime is 13770131. The next prime is 13770149. The reversal of 13770132 is 23107731.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13770131) 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 3 ways as a sum of consecutive naturals, for example, 573744 + ... + 573767.

It is an arithmetic number, because the mean of its divisors is an integer number (2677528).

Almost surely, 213770132 is an apocalyptic number.

13770132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13770132 is an abundant number, since it is smaller than the sum of its proper divisors (18360204).

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

13770132 is a wasteful number, since it uses less digits than its factorization.

13770132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147518 (or 1147516 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 13770132 is about 3710.8128489591. The cubic root of 13770132 is about 239.6878580959.

Adding to 13770132 its reverse (23107731), we get a palindrome (36877863).

The spelling of 13770132 in words is "thirteen million, seven hundred seventy thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 1147511 2295022 3442533 4590044 6885066 13770132