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19413072 = 2432719259
BaseRepresentation
bin100101000001…
…1100001010000
31100112021201200
41022003201100
514432204242
61532031200
7324002610
oct112034120
940467650
1019413072
11aa5a368
126602500
134039233
142814a40
151a8704c
hex1283850

19413072 has 60 divisors (see below), whose sum is σ = 62094240. Its totient is φ = 5546304.

The previous prime is 19413071. The next prime is 19413083. The reversal of 19413072 is 27031491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19413071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8622 + ... + 10637.

It is an arithmetic number, because the mean of its divisors is an integer number (1034904).

Almost surely, 219413072 is an apocalyptic number.

19413072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19413072 is an abundant number, since it is smaller than the sum of its proper divisors (42681168).

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

19413072 is a wasteful number, since it uses less digits than its factorization.

19413072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19280 (or 19271 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 19413072 is about 4406.0267815800. The cubic root of 19413072 is about 268.7600759157.

The spelling of 19413072 in words is "nineteen million, four hundred thirteen thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 19259 38518 57777 77036 115554 134813 154072 173331 231108 269626 308144 346662 404439 462216 539252 693324 808878 924432 1078504 1213317 1386648 1617756 2157008 2426634 2773296 3235512 4853268 6471024 9706536 19413072