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19429044 = 2231619087
BaseRepresentation
bin100101000011…
…1011010110100
31100120002122020
41022013122310
514433212134
61532233140
7324100305
oct112073264
940502566
1019429044
11aa70368
12660b7b0
13404359b
14281a7ac
151a8bb49
hex12876b4

19429044 has 12 divisors (see below), whose sum is σ = 45334464. Its totient is φ = 6476344.

The previous prime is 19429037. The next prime is 19429073. The reversal of 19429044 is 44092491.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 19428996 and 19429014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809532 + ... + 809555.

It is an arithmetic number, because the mean of its divisors is an integer number (3777872).

Almost surely, 219429044 is an apocalyptic number.

It is an amenable number.

19429044 is an abundant number, since it is smaller than the sum of its proper divisors (25905420).

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

19429044 is a wasteful number, since it uses less digits than its factorization.

19429044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619094 (or 1619092 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 19429044 is about 4407.8389262767. The cubic root of 19429044 is about 268.8337626773.

The spelling of 19429044 in words is "nineteen million, four hundred twenty-nine thousand, forty-four".

Divisors: 1 2 3 4 6 12 1619087 3238174 4857261 6476348 9714522 19429044