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19398037230 = 232511131507229
BaseRepresentation
bin10010000100001101…
…101000111011101110
31212001212211101120100
4102010031220323232
5304211344142410
612524503131530
71254462411255
oct220415507356
955055741510
1019398037230
118254760530
123914443ba6
131aa1a72850
14d2038b79c
15787eb18c0
hex484368eee

19398037230 has 96 divisors (see below), whose sum is σ = 59252225760. Its totient is φ = 4340816640.

The previous prime is 19398037207. The next prime is 19398037231. The reversal of 19398037230 is 3273089391.

19398037230 is a `hidden beast` number, since 193 + 98 + 0 + 372 + 3 + 0 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19398037231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 740745 + ... + 766484.

It is an arithmetic number, because the mean of its divisors is an integer number (617210685).

Almost surely, 219398037230 is an apocalyptic number.

19398037230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19398037230 is an abundant number, since it is smaller than the sum of its proper divisors (39854188530).

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

19398037230 is a wasteful number, since it uses less digits than its factorization.

19398037230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507266 (or 1507263 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 19398037230 in words is "nineteen billion, three hundred ninety-eight million, thirty-seven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 13 15 18 22 26 30 33 39 45 55 65 66 78 90 99 110 117 130 143 165 195 198 234 286 330 390 429 495 585 715 858 990 1170 1287 1430 2145 2574 4290 6435 12870 1507229 3014458 4521687 7536145 9043374 13565061 15072290 16579519 19593977 22608435 27130122 33159038 39187954 45216870 49738557 58781931 67825305 82897595 97969885 99477114 117563862 135650610 149215671 165795190 176345793 195939770 215533747 248692785 293909655 298431342 352691586 431067494 497385570 587819310 646601241 746078355 881728965 1077668735 1293202482 1492156710 1763457930 1939803723 2155337470 3233006205 3879607446 6466012410 9699018615 19398037230