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106787880 = 233251717449
BaseRepresentation
bin1100101110101…
…11010000101000
321102221101102200
412113113100220
5204314203010
614332500200
72434452633
oct627272050
9242841380
10106787880
1155308351
122b91a660
131917c2c4
141027ac1a
159595cc0
hex65d7428

106787880 has 96 divisors (see below), whose sum is σ = 367497000. Its totient is φ = 26800128.

The previous prime is 106787867. The next prime is 106787893. The reversal of 106787880 is 88787601.

It is an interprime number because it is at equal distance from previous prime (106787867) and next prime (106787893).

It can be written as a sum of positive squares in 4 ways, for example, as 106626276 + 161604 = 10326^2 + 402^2 .

It is a super-2 number, since 2×1067878802 = 22807302629788800, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2605 + ... + 14844.

Almost surely, 2106787880 is an apocalyptic number.

106787880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 106787880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183748500).

106787880 is an abundant number, since it is smaller than the sum of its proper divisors (260709120).

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

106787880 is a wasteful number, since it uses less digits than its factorization.

106787880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17483 (or 17476 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 106787880 is about 10333.8221389765. The cubic root of 106787880 is about 474.4320154668.

The spelling of 106787880 in words is "one hundred six million, seven hundred eighty-seven thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 136 153 170 180 204 255 306 340 360 408 510 612 680 765 1020 1224 1530 2040 3060 6120 17449 34898 52347 69796 87245 104694 139592 157041 174490 209388 261735 296633 314082 348980 418776 523470 593266 628164 697960 785205 889899 1046940 1186532 1256328 1483165 1570410 1779798 2093880 2373064 2669697 2966330 3140820 3559596 4449495 5339394 5932660 6281640 7119192 8898990 10678788 11865320 13348485 17797980 21357576 26696970 35595960 53393940 106787880