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228487408400 = 24522512275771
BaseRepresentation
bin1101010011001011101…
…0010010101100010000
3210211202200100222021102
43110302322102230100
512220420234032100
6252544330043532
722336062632546
oct3246272225420
9724680328242
10228487408400
11889a0204829
1238347b795a8
1318714203954
14b0b76a9d96
155e243b7cd5
hex3532e92b10

228487408400 has 60 divisors (see below), whose sum is σ = 551128256784. Its totient is φ = 91030800000.

The previous prime is 228487408393. The next prime is 228487408439. The reversal of 228487408400 is 4804784822.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1037486 + ... + 1238285.

Almost surely, 2228487408400 is an apocalyptic number.

228487408400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228487408400 is an abundant number, since it is smaller than the sum of its proper divisors (322640848384).

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

228487408400 is a wasteful number, since it uses less digits than its factorization.

228487408400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276040 (or 2276029 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 47.

The spelling of 228487408400 in words is "two hundred twenty-eight billion, four hundred eighty-seven million, four hundred eight thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 251 400 502 1004 1255 2008 2510 4016 5020 6275 10040 12550 20080 25100 50200 100400 2275771 4551542 9103084 11378855 18206168 22757710 36412336 45515420 56894275 91030840 113788550 182061680 227577100 455154200 571218521 910308400 1142437042 2284874084 2856092605 4569748168 5712185210 9139496336 11424370420 14280463025 22848740840 28560926050 45697481680 57121852100 114243704200 228487408400