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19274113 = 192234549
BaseRepresentation
bin100100110000…
…1100110000001
31100021020010001
41021201212001
514413232423
61525040001
7322553515
oct111414601
940236101
1019274113
11a974a21
126556001
133cbac01
1427ba145
151a5acad
hex1261981

19274113 has 8 divisors (see below), whose sum is σ = 20384000. Its totient is φ = 18173808.

The previous prime is 19274111. The next prime is 19274131. The reversal of 19274113 is 31147291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19274113 - 21 = 19274111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19274111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1963 + ... + 6511.

It is an arithmetic number, because the mean of its divisors is an integer number (2548000).

Almost surely, 219274113 is an apocalyptic number.

It is an amenable number.

19274113 is a deficient number, since it is larger than the sum of its proper divisors (1109887).

19274113 is a wasteful number, since it uses less digits than its factorization.

19274113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791.

The product of its digits is 1512, while the sum is 28.

The square root of 19274113 is about 4390.2292650840. The cubic root of 19274113 is about 268.1172771415.

It can be divided in two parts, 192 and 74113, that added together give a triangular number (74305 = T385).

The spelling of 19274113 in words is "nineteen million, two hundred seventy-four thousand, one hundred thirteen".

Divisors: 1 19 223 4237 4549 86431 1014427 19274113