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455293920 = 25352513779
BaseRepresentation
bin11011001000110…
…011101111100000
31011201201022211210
4123020303233200
51413023401140
6113102310120
714165635344
oct3310635740
91151638753
10455293920
11214002074
12108588340
13734314b3
1444679624
1529e86d80
hex1b233be0

455293920 has 96 divisors (see below), whose sum is σ = 1440270720. Its totient is φ = 120896000.

The previous prime is 455293913. The next prime is 455293921. The reversal of 455293920 is 29392554.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455293921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118591 + ... + 122369.

It is an arithmetic number, because the mean of its divisors is an integer number (15002820).

Almost surely, 2455293920 is an apocalyptic number.

455293920 is a gapful number since it is divisible by the number (40) 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 455293920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720135360).

455293920 is an abundant number, since it is smaller than the sum of its proper divisors (984976800).

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

455293920 is a wasteful number, since it uses less digits than its factorization.

455293920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048 (or 4040 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 455293920 is about 21337.6174864955. The cubic root of 455293920 is about 769.3027476851.

The spelling of 455293920 in words is "four hundred fifty-five million, two hundred ninety-three thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 251 480 502 753 1004 1255 1506 2008 2510 3012 3765 3779 4016 5020 6024 7530 7558 8032 10040 11337 12048 15060 15116 18895 20080 22674 24096 30120 30232 37790 40160 45348 56685 60240 60464 75580 90696 113370 120480 120928 151160 181392 226740 302320 362784 453480 604640 906960 948529 1813920 1897058 2845587 3794116 4742645 5691174 7588232 9485290 11382348 14227935 15176464 18970580 22764696 28455870 30352928 37941160 45529392 56911740 75882320 91058784 113823480 151764640 227646960 455293920