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19014912 = 28347131
BaseRepresentation
bin100100010001…
…0010100000000
31022210001120000
41020202110000
514331434122
61515320000
7320424030
oct110422400
938701500
1019014912
11a808204
126450000
133c29c37
14274d8c0
151a090ac
hex1222500

19014912 has 180 divisors, whose sum is σ = 65293536. Its totient is φ = 5391360.

The previous prime is 19014911. The next prime is 19014943. The reversal of 19014912 is 21941091.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19014911) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 145087 + ... + 145217.

Almost surely, 219014912 is an apocalyptic number.

19014912 is a gapful number since it is divisible by the number (12) 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 19014912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32646768).

19014912 is an abundant number, since it is smaller than the sum of its proper divisors (46278624).

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

19014912 is an equidigital number, since it uses as much as digits as its factorization.

19014912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 19014912 is about 4360.6091317613. The cubic root of 19014912 is about 266.9099557494.

The spelling of 19014912 in words is "nineteen million, fourteen thousand, nine hundred twelve".