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13769620 = 2254631487
BaseRepresentation
bin110100100001…
…101110010100
3221220120100221
4310201232110
512011111440
61211044124
7225016444
oct64415624
927816327
1013769620
117855357
124740644
132b11607
141b86124
15131ed4a
hexd21b94

13769620 has 24 divisors (see below), whose sum is σ = 28998144. Its totient is φ = 5492256.

The previous prime is 13769603. The next prime is 13769627. The reversal of 13769620 is 2696731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13769627) 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, 8517 + ... + 10003.

It is an arithmetic number, because the mean of its divisors is an integer number (1208256).

Almost surely, 213769620 is an apocalyptic number.

13769620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13769620 is an abundant number, since it is smaller than the sum of its proper divisors (15228524).

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

13769620 is a wasteful number, since it uses less digits than its factorization.

13769620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 13769620 is about 3710.7438607374. The cubic root of 13769620 is about 239.6848873738.

The spelling of 13769620 in words is "thirteen million, seven hundred sixty-nine thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 463 926 1487 1852 2315 2974 4630 5948 7435 9260 14870 29740 688481 1376962 2753924 3442405 6884810 13769620