Search a number
-
+
18996614000 = 2453721323137
BaseRepresentation
bin10001101100010010…
…010101001101110000
31211000220110222102022
4101230102111031300
5302401113122000
612421003211012
71241516361200
oct215422251560
954026428368
1018996614000
1180691032a1
123821b16a68
131a39853500
14cc2d36400
15762b1b585
hex46c495370

18996614000 has 720 divisors, whose sum is σ = 61340288256. Its totient is φ = 5660928000.

The previous prime is 18996613967. The next prime is 18996614017. The reversal of 18996614000 is 41669981.

It is a super-4 number, since 4×189966140004 (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 513421982 + ... + 513422018.

Almost surely, 218996614000 is an apocalyptic number.

18996614000 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 18996614000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30670144128).

18996614000 is an abundant number, since it is smaller than the sum of its proper divisors (42343674256).

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

18996614000 is a wasteful number, since it uses less digits than its factorization.

18996614000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 18996614000 in words is "eighteen billion, nine hundred ninety-six million, six hundred fourteen thousand".