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19238148 = 223459377
BaseRepresentation
bin100100101100…
…0110100000100
31100012101210000
41021120310010
514411110043
61524201300
7322343616
oct111306404
940171700
1019238148
11a94a9a6
126539230
133ca7727
1427aadb6
151a502d3
hex1258d04

19238148 has 30 divisors (see below), whose sum is σ = 50293166. Its totient is φ = 6412608.

The previous prime is 19238129. The next prime is 19238171. The reversal of 19238148 is 84183291.

It can be written as a sum of positive squares in only one way, i.e., 18818244 + 419904 = 4338^2 + 648^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 29365 + ... + 30012.

Almost surely, 219238148 is an apocalyptic number.

19238148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19238148 is an abundant number, since it is smaller than the sum of its proper divisors (31055018).

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

19238148 is a wasteful number, since it uses less digits than its factorization.

19238148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59393 (or 59382 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 19238148 is about 4386.1313249833. The cubic root of 19238148 is about 267.9504066546.

The spelling of 19238148 in words is "nineteen million, two hundred thirty-eight thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 59377 118754 178131 237508 356262 534393 712524 1068786 1603179 2137572 3206358 4809537 6412716 9619074 19238148