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19420332 = 22312712743
BaseRepresentation
bin100101000010…
…1010010101100
31100112122200120
41022011102230
514432422312
61532124540
7324033021
oct112052254
940478616
1019420332
11aa64868
126606750
13403c629
142817548
151a8928c
hex12854ac

19420332 has 24 divisors (see below), whose sum is σ = 45674496. Its totient is φ = 6421968.

The previous prime is 19420321. The next prime is 19420361. The reversal of 19420332 is 23302491.

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, 4848 + ... + 7895.

It is an arithmetic number, because the mean of its divisors is an integer number (1903104).

Almost surely, 219420332 is an apocalyptic number.

19420332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19420332 is an abundant number, since it is smaller than the sum of its proper divisors (26254164).

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

19420332 is a wasteful number, since it uses less digits than its factorization.

19420332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12877 (or 12875 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 19420332 is about 4406.8505760917. The cubic root of 19420332 is about 268.7935749067.

The spelling of 19420332 in words is "nineteen million, four hundred twenty thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 127 254 381 508 762 1524 12743 25486 38229 50972 76458 152916 1618361 3236722 4855083 6473444 9710166 19420332