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19394032 = 247434027
BaseRepresentation
bin100100111111…
…0110111110000
31100111022121111
41021332313300
514431102112
61531403104
7323563240
oct111766760
940438544
1019394032
11aa47029
1265b3494
134030678
14280bb20
151a815a7
hex127edf0

19394032 has 40 divisors (see below), whose sum is σ = 43953536. Its totient is φ = 8116416.

The previous prime is 19394027. The next prime is 19394047. The reversal of 19394032 is 23049391.

It is a super-2 number, since 2×193940322 = 752256954434048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19393985 and 19394003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2803 + ... + 6829.

Almost surely, 219394032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19394032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21976768).

19394032 is an abundant number, since it is smaller than the sum of its proper divisors (24559504).

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

19394032 is a wasteful number, since it uses less digits than its factorization.

19394032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085 (or 4079 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 19394032 is about 4403.8655746968. The cubic root of 19394032 is about 268.6721821208.

The spelling of 19394032 in words is "nineteen million, three hundred ninety-four thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 28 43 56 86 112 172 301 344 602 688 1204 2408 4027 4816 8054 16108 28189 32216 56378 64432 112756 173161 225512 346322 451024 692644 1212127 1385288 2424254 2770576 4848508 9697016 19394032