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19413372 = 22311612411
BaseRepresentation
bin100101000001…
…1100101111100
31100112022010210
41022003211330
514432211442
61532032420
7324003516
oct112034574
940468123
1019413372
11aa5a610
126602710
134039404
142814bb6
151a8719c
hex128397c

19413372 has 48 divisors (see below), whose sum is σ = 50246784. Its totient is φ = 5784000.

The previous prime is 19413367. The next prime is 19413379. The reversal of 19413372 is 27331491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19413379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6847 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (1046808).

Almost surely, 219413372 is an apocalyptic number.

19413372 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 19413372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25123392).

19413372 is an abundant number, since it is smaller than the sum of its proper divisors (30833412).

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

19413372 is a wasteful number, since it uses less digits than its factorization.

19413372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2488 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 19413372 is about 4406.0608257263. The cubic root of 19413372 is about 268.7614603370.

The spelling of 19413372 in words is "nineteen million, four hundred thirteen thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 61 66 122 132 183 244 366 671 732 1342 2013 2411 2684 4026 4822 7233 8052 9644 14466 26521 28932 53042 79563 106084 147071 159126 294142 318252 441213 588284 882426 1617781 1764852 3235562 4853343 6471124 9706686 19413372