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19930050 = 2345271937
BaseRepresentation
bin100110000000…
…1101111000010
31101111112220000
41030001233002
520100230200
61551100430
7331255050
oct114015702
941445800
1019930050
1110282818
126811716
13418a63a
14290b1d0
151b3a300
hex1301bc2

19930050 has 240 divisors, whose sum is σ = 68418240. Its totient is φ = 4199040.

The previous prime is 19930033. The next prime is 19930061. The reversal of 19930050 is 5003991.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 19929996 and 19930023.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 538632 + ... + 538668.

It is an arithmetic number, because the mean of its divisors is an integer number (285076).

Almost surely, 219930050 is an apocalyptic number.

19930050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19930050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34209120).

19930050 is an abundant number, since it is smaller than the sum of its proper divisors (48488190).

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

19930050 is a wasteful number, since it uses less digits than its factorization.

19930050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 19930050 is about 4464.3084570849. The cubic root of 19930050 is about 271.1249361524.

The spelling of 19930050 in words is "nineteen million, nine hundred thirty thousand, fifty".