Search a number
-
+
19023102 = 23271783107
BaseRepresentation
bin100100010010…
…0010011111110
31022210110210100
41020210103332
514332214402
61515421530
7320456640
oct110442376
938713710
1019023102
11a81337a
1264548a6
133c30897
142752890
151a0b71c
hex12244fe

19023102 has 96 divisors (see below), whose sum is σ = 50948352. Its totient is φ = 5006592.

The previous prime is 19023097. The next prime is 19023107. The reversal of 19023102 is 20132091.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19023097) and next prime (19023107).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19023107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177733 + ... + 177839.

It is an arithmetic number, because the mean of its divisors is an integer number (530712).

Almost surely, 219023102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19023102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25474176).

19023102 is an abundant number, since it is smaller than the sum of its proper divisors (31925250).

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

19023102 is a wasteful number, since it uses less digits than its factorization.

19023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 19023102 is about 4361.5481196474. The cubic root of 19023102 is about 266.9482709195.

Adding to 19023102 its reverse (20132091), we get a palindrome (39155193).

The spelling of 19023102 in words is "nineteen million, twenty-three thousand, one hundred two".

Divisors: 1 2 3 6 7 9 14 17 18 21 34 42 51 63 83 102 107 119 126 153 166 214 238 249 306 321 357 498 581 642 714 747 749 963 1071 1162 1411 1494 1498 1743 1819 1926 2142 2247 2822 3486 3638 4233 4494 5229 5457 6741 8466 8881 9877 10458 10914 12699 12733 13482 16371 17762 19754 25398 25466 26643 29631 32742 38199 53286 59262 62167 76398 79929 88893 114597 124334 150977 159858 177786 186501 229194 301954 373002 452931 559503 905862 1056839 1119006 1358793 2113678 2717586 3170517 6341034 9511551 19023102