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100212102010 = 25174136973889
BaseRepresentation
bin101110101010100011…
…0110101001101111010
3100120122221202020111201
41131111012311031322
53120213244231020
6114011541044414
710145230545466
oct1352506651572
9316587666451
10100212102010
1139555134519
12175089b670a
1395b07432a7
144bc92b34a6
152917b84a0a
hex17551b537a

100212102010 has 64 divisors (see below), whose sum is σ = 195754073760. Its totient is φ = 36787322880.

The previous prime is 100212101933. The next prime is 100212102017. The reversal of 100212102010 is 10201212001.

It can be written as a sum of positive squares in 16 ways, for example, as 398441521 + 99813660489 = 19961^2 + 315933^2 .

It is a super-4 number, since 4×1002121020104 (a number of 45 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (100212102017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25766146 + ... + 25770034.

Almost surely, 2100212102010 is an apocalyptic number.

100212102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100212102010 is a deficient number, since it is larger than the sum of its proper divisors (95541971750).

100212102010 is a wasteful number, since it uses less digits than its factorization.

100212102010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100212102010 its reverse (10201212001), we get a palindrome (110413314011).

The spelling of 100212102010 in words is "one hundred billion, two hundred twelve million, one hundred two thousand, ten".

Divisors: 1 2 5 10 17 34 41 82 85 170 205 410 697 1394 3485 3697 3889 6970 7394 7778 18485 19445 36970 38890 62849 66113 125698 132226 151577 159449 303154 314245 318898 330565 628490 661130 757885 797245 1515770 1594490 2576809 2710633 5153618 5421266 12884045 13553165 14377633 25768090 27106330 28755266 71888165 143776330 244419761 488839522 589482953 1178965906 1222098805 2444197610 2947414765 5894829530 10021210201 20042420402 50106051005 100212102010