Search a number
-
+
19230744 = 2331361637
BaseRepresentation
bin100100101011…
…1000000011000
31100012000121210
41021113000120
514410340434
61524103120
7322313211
oct111270030
940160553
1019230744
11a945385
126534aa0
133ca4250
1427a8408
151a4cee9
hex1257018

19230744 has 32 divisors (see below), whose sum is σ = 51775920. Its totient is φ = 5917056.

The previous prime is 19230727. The next prime is 19230749. The reversal of 19230744 is 44703291.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19230749) 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, 30507 + ... + 31130.

Almost surely, 219230744 is an apocalyptic number.

It is an amenable number.

19230744 is an abundant number, since it is smaller than the sum of its proper divisors (32545176).

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

19230744 is a wasteful number, since it uses less digits than its factorization.

19230744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61659 (or 61655 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 19230744 is about 4385.2872197839. The cubic root of 19230744 is about 267.9160277499.

The spelling of 19230744 in words is "nineteen million, two hundred thirty thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 61637 123274 184911 246548 369822 493096 739644 801281 1479288 1602562 2403843 3205124 4807686 6410248 9615372 19230744