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14552020 = 2257231479
BaseRepresentation
bin110111100000…
…101111010100
31000101022121201
4313200233110
512211131040
61235522244
7234455500
oct67405724
930338551
1014552020
11823a16a
124a59384
133026782
141d0b300
151426a9a
hexde0bd4

14552020 has 72 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 4818240.

The previous prime is 14552009. The next prime is 14552023. The reversal of 14552020 is 2025541.

It is a super-2 number, since 2×145520202 = 423522572160800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14552023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30141 + ... + 30619.

It is an arithmetic number, because the mean of its divisors is an integer number (510720).

Almost surely, 214552020 is an apocalyptic number.

14552020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14552020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18385920).

14552020 is an abundant number, since it is smaller than the sum of its proper divisors (22219820).

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

14552020 is a wasteful number, since it uses less digits than its factorization.

14552020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 14552020 is about 3814.7109982278. The cubic root of 14552020 is about 244.1412109240.

Adding to 14552020 its reverse (2025541), we get a palindrome (16577561).

It can be divided in two parts, 1455 and 2020, that multiplied together give a triangular number (2939100 = T2424).

The spelling of 14552020 in words is "fourteen million, five hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 49 62 70 98 124 140 155 196 217 245 310 434 479 490 620 868 958 980 1085 1519 1916 2170 2395 3038 3353 4340 4790 6076 6706 7595 9580 13412 14849 15190 16765 23471 29698 30380 33530 46942 59396 67060 74245 93884 103943 117355 148490 207886 234710 296980 415772 469420 519715 727601 1039430 1455202 2078860 2910404 3638005 7276010 14552020