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13829445 = 3257431021
BaseRepresentation
bin110100110000…
…010101000101
3222000121102200
4310300111011
512020020240
61212225113
7225356040
oct64602505
928017380
1013829445
1178962a3
12476b199
132b32906
141b9dc57
151332930
hexd30545

13829445 has 48 divisors (see below), whose sum is σ = 28060032. Its totient is φ = 6168960.

The previous prime is 13829419. The next prime is 13829461. The reversal of 13829445 is 54492831.

It is not a de Polignac number, because 13829445 - 29 = 13828933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13035 + ... + 14055.

It is an arithmetic number, because the mean of its divisors is an integer number (584584).

Almost surely, 213829445 is an apocalyptic number.

13829445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13829445 is an abundant number, since it is smaller than the sum of its proper divisors (14230587).

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

13829445 is a wasteful number, since it uses less digits than its factorization.

13829445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1079 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 13829445 is about 3718.7961761839. The cubic root of 13829445 is about 240.0315062805.

The spelling of 13829445 in words is "thirteen million, eight hundred twenty-nine thousand, four hundred forty-five".

Divisors: 1 3 5 7 9 15 21 35 43 45 63 105 129 215 301 315 387 645 903 1021 1505 1935 2709 3063 4515 5105 7147 9189 13545 15315 21441 35735 43903 45945 64323 107205 131709 219515 307321 321615 395127 658545 921963 1536605 1975635 2765889 4609815 13829445