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19249092 = 2232534697
BaseRepresentation
bin100100101101…
…1011111000100
31100012221210100
41021123133010
514411432332
61524324100
7322420542
oct111333704
940187710
1019249092
11a958145
126543630
133cac6c5
1427b0d92
151a5367c
hex125b7c4

19249092 has 18 divisors (see below), whose sum is σ = 48657518. Its totient is φ = 6416352.

The previous prime is 19249081. The next prime is 19249093. The reversal of 19249092 is 29094291.

It can be written as a sum of positive squares in only one way, i.e., 12152196 + 7096896 = 3486^2 + 2664^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 534697 = 19249092 / (1 + 9 + 2 + 4 + 9 + 0 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (19249093) 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, 267313 + ... + 267384.

Almost surely, 219249092 is an apocalyptic number.

19249092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19249092 is an abundant number, since it is smaller than the sum of its proper divisors (29408426).

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

19249092 is a wasteful number, since it uses less digits than its factorization.

19249092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534707 (or 534702 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 19249092 is about 4387.3787162724. The cubic root of 19249092 is about 268.0012066479.

It can be divided in two parts, 192 and 49092, that added together give a square (49284 = 2222).

The spelling of 19249092 in words is "nineteen million, two hundred forty-nine thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 534697 1069394 1604091 2138788 3208182 4812273 6416364 9624546 19249092