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19057228 = 2219250753
BaseRepresentation
bin100100010110…
…0101001001100
31022212012121021
41020230221030
514334312403
61520243524
7320661301
oct110545114
938765537
1019057228
11a836a83
1264705a4
133c43288
1427610a8
151a168bd
hex122ca4c

19057228 has 12 divisors (see below), whose sum is σ = 35105560. Its totient is φ = 9027072.

The previous prime is 19057217. The next prime is 19057229. The reversal of 19057228 is 82275091.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19057193 and 19057202.

It is not an unprimeable number, because it can be changed into a prime (19057229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125301 + ... + 125452.

Almost surely, 219057228 is an apocalyptic number.

It is an amenable number.

19057228 is a deficient number, since it is larger than the sum of its proper divisors (16048332).

19057228 is a wasteful number, since it uses less digits than its factorization.

19057228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250776 (or 250774 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 19057228 is about 4365.4585097101. The cubic root of 19057228 is about 267.1078038678.

The spelling of 19057228 in words is "nineteen million, fifty-seven thousand, two hundred twenty-eight".

Divisors: 1 2 4 19 38 76 250753 501506 1003012 4764307 9528614 19057228