Search a number
-
+
19234933904 = 247915217511
BaseRepresentation
bin10001111010011111…
…011100110010010000
31211122111220212212102
4101322133130302100
5303343120341104
612500355215532
71250442145334
oct217237346220
954574825772
1019234933904
11818068959a
1238898a75a8
131a770366c4
14d068517c4
157789e4a1e
hex47a7dcc90

19234933904 has 20 divisors (see below), whose sum is σ = 37739429760. Its totient is φ = 9495726240.

The previous prime is 19234933901. The next prime is 19234933937. The reversal of 19234933904 is 40933943291.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19234933901) 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, 7607492 + ... + 7610019.

It is an arithmetic number, because the mean of its divisors is an integer number (1886971488).

Almost surely, 219234933904 is an apocalyptic number.

It is an amenable number.

19234933904 is a deficient number, since it is larger than the sum of its proper divisors (18504495856).

19234933904 is a wasteful number, since it uses less digits than its factorization.

19234933904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15217598 (or 15217592 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 47.

The spelling of 19234933904 in words is "nineteen billion, two hundred thirty-four million, nine hundred thirty-three thousand, nine hundred four".

Divisors: 1 2 4 8 16 79 158 316 632 1264 15217511 30435022 60870044 121740088 243480176 1202183369 2404366738 4808733476 9617466952 19234933904