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102103033212 = 223240961711239
BaseRepresentation
bin101111100010111010…
…0001010010101111100
3100202112201212111110200
41133011310022111330
53133101334030322
6114523330203500
710243131314445
oct1370564122574
9322481774420
10102103033212
113a335556084
1217956123590
1398224200ab
144d2849a2cc
1529c8ba08ac
hex17c5d0a57c

102103033212 has 72 divisors (see below), whose sum is σ = 259167199200. Its totient is φ = 33893088768.

The previous prime is 102103033211. The next prime is 102103033271. The reversal of 102103033212 is 212330301201.

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 (102103033211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9079089 + ... + 9090327.

Almost surely, 2102103033212 is an apocalyptic number.

102103033212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102103033212 is an abundant number, since it is smaller than the sum of its proper divisors (157064165988).

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

102103033212 is a wasteful number, since it uses less digits than its factorization.

102103033212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12275 (or 12270 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 102103033212 its reverse (212330301201), we get a palindrome (314433334413).

The spelling of 102103033212 in words is "one hundred two billion, one hundred three million, thirty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 409 617 818 1227 1234 1636 1851 2454 2468 3681 3702 4908 5553 7362 7404 11106 11239 14724 22212 22478 33717 44956 67434 101151 134868 202302 252353 404604 504706 757059 1009412 1514118 2271177 3028236 4542354 4596751 6934463 9084708 9193502 13790253 13868926 18387004 20803389 27580506 27737852 41370759 41606778 55161012 62410167 82741518 83213556 124820334 165483036 249640668 2836195367 5672390734 8508586101 11344781468 17017172202 25525758303 34034344404 51051516606 102103033212