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12552255405 = 3251723713399
BaseRepresentation
bin10111011000010110…
…00011011110101101
31012101210021122100100
423230023003132231
5201201334133110
65433314221313
7623025260544
oct135413033655
935353248310
1012552255405
11536146a2a8
122523884839
1312506b4781
148710d715b
154d6eabbc0
hex2ec2c37ad

12552255405 has 48 divisors (see below), whose sum is σ = 24038726400. Its totient is φ = 6026786304.

The previous prime is 12552255403. The next prime is 12552255407. The reversal of 12552255405 is 50455225521.

12552255405 is a `hidden beast` number, since 1 + 25 + 5 + 225 + 5 + 405 = 666.

It is an interprime number because it is at equal distance from previous prime (12552255403) and next prime (12552255407).

It is not a de Polignac number, because 12552255405 - 21 = 12552255403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12552255405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12552255403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 339105 + ... + 374294.

It is an arithmetic number, because the mean of its divisors is an integer number (500806800).

Almost surely, 212552255405 is an apocalyptic number.

12552255405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12552255405 is a deficient number, since it is larger than the sum of its proper divisors (11486470995).

12552255405 is a wasteful number, since it uses less digits than its factorization.

12552255405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713450 (or 713447 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 12552255405 in words is "twelve billion, five hundred fifty-two million, two hundred fifty-five thousand, four hundred five".

Divisors: 1 3 5 9 15 17 23 45 51 69 85 115 153 207 255 345 391 765 1035 1173 1955 3519 5865 17595 713399 2140197 3566995 6420591 10700985 12127783 16408177 32102955 36383349 49224531 60638915 82040885 109150047 147673593 181916745 246122655 278939009 545750235 738367965 836817027 1394695045 2510451081 4184085135 12552255405