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19034874 = 2321057493
BaseRepresentation
bin100100010011…
…1001011111010
31022211001221100
41020213023322
514333103444
61515552230
7320536155
oct110471372
938731840
1019034874
11a821201
12645b676
133c36051
142756c9c
151a0ee69
hex12272fa

19034874 has 12 divisors (see below), whose sum is σ = 41242266. Its totient is φ = 6344952.

The previous prime is 19034861. The next prime is 19034879. The reversal of 19034874 is 47843091.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14861025 + 4173849 = 3855^2 + 2043^2 .

It is not an unprimeable number, because it can be changed into a prime (19034879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 528729 + ... + 528764.

Almost surely, 219034874 is an apocalyptic number.

19034874 is an abundant number, since it is smaller than the sum of its proper divisors (22207392).

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

19034874 is a wasteful number, since it uses less digits than its factorization.

19034874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057501 (or 1057498 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 19034874 is about 4362.8974317534. The cubic root of 19034874 is about 267.0033244547.

The spelling of 19034874 in words is "nineteen million, thirty-four thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 9 18 1057493 2114986 3172479 6344958 9517437 19034874