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18190424608 = 251459138959
BaseRepresentation
bin10000111100001110…
…111101101000100000
31201221201111022110221
4100330032331220200
5244223222041413
612205003532424
71212530025616
oct207416755040
951851438427
1018190424608
117795025274
123637b2a114
13193b814375
14c47c396b6
15716e7068d
hex43c3bda20

18190424608 has 24 divisors (see below), whose sum is σ = 35815772160. Its totient is φ = 9094355520.

The previous prime is 18190424597. The next prime is 18190424641. The reversal of 18190424608 is 80642409181.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447433 + ... + 486391.

It is an arithmetic number, because the mean of its divisors is an integer number (1492323840).

Almost surely, 218190424608 is an apocalyptic number.

It is an amenable number.

18190424608 is a deficient number, since it is larger than the sum of its proper divisors (17625347552).

18190424608 is a wasteful number, since it uses less digits than its factorization.

18190424608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53560 (or 53552 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 18190424608 in words is "eighteen billion, one hundred ninety million, four hundred twenty-four thousand, six hundred eight".

Divisors: 1 2 4 8 16 32 14591 29182 38959 58364 77918 116728 155836 233456 311672 466912 623344 1246688 568450769 1136901538 2273803076 4547606152 9095212304 18190424608