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103019490 = 23257179619
BaseRepresentation
bin1100010001111…
…11001111100010
321011211221011200
412020333033202
5202333110430
614120022030
72360436240
oct610771742
9234757150
10103019490
1153174082
122a601916
131845cca2
14d979790
15909e460
hex623f3e2

103019490 has 96 divisors (see below), whose sum is σ = 324155520. Its totient is φ = 22159872.

The previous prime is 103019489. The next prime is 103019491. The reversal of 103019490 is 94910301.

It is an interprime number because it is at equal distance from previous prime (103019489) and next prime (103019491).

It is a super-2 number, since 2×1030194902 = 21226030639720200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103019491) 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, 5901 + ... + 15519.

It is an arithmetic number, because the mean of its divisors is an integer number (3376620).

Almost surely, 2103019490 is an apocalyptic number.

103019490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103019490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162077760).

103019490 is an abundant number, since it is smaller than the sum of its proper divisors (221136030).

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

103019490 is a wasteful number, since it uses less digits than its factorization.

103019490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9656 (or 9653 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 103019490 is about 10149.8517230549. The cubic root of 103019490 is about 468.7843793451.

Adding to 103019490 its reverse (94910301), we get a palindrome (197929791).

It can be divided in two parts, 10301 and 9490, that added together give a palindrome (19791).

The spelling of 103019490 in words is "one hundred three million, nineteen thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 17 18 21 30 34 35 42 45 51 63 70 85 90 102 105 119 126 153 170 210 238 255 306 315 357 510 595 630 714 765 1071 1190 1530 1785 2142 3570 5355 9619 10710 19238 28857 48095 57714 67333 86571 96190 134666 144285 163523 173142 201999 288570 327046 336665 403998 432855 490569 605997 673330 817615 865710 981138 1009995 1144661 1211994 1471707 1635230 2019990 2289322 2452845 2943414 3029985 3433983 4905690 5723305 6059970 6867966 7358535 10301949 11446610 14717070 17169915 20603898 34339830 51509745 103019490