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212512454150 = 25219132716803
BaseRepresentation
bin1100010111101010111…
…0101011011000000110
3202022112100200012210012
43011322232223120012
511440211142013100
6241343223230222
721232154025113
oct3057256533006
9668470605705
10212512454150
11821428161a7
1235229ba8372
13170696a96b9
14a3ddbb790a
1557dbbbd135
hex317abab606

212512454150 has 48 divisors (see below), whose sum is σ = 397522556928. Its totient is φ = 84521652000.

The previous prime is 212512454129. The next prime is 212512454239. The reversal of 212512454150 is 51454215212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31234649 + ... + 31241451.

It is an arithmetic number, because the mean of its divisors is an integer number (8281719936).

Almost surely, 2212512454150 is an apocalyptic number.

212512454150 is a deficient number, since it is larger than the sum of its proper divisors (185010102778).

212512454150 is a wasteful number, since it uses less digits than its factorization.

212512454150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10277 (or 10272 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 212512454150 its reverse (51454215212), we get a palindrome (263966669362).

The spelling of 212512454150 in words is "two hundred twelve billion, five hundred twelve million, four hundred fifty-four thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 191 382 955 1910 3271 4775 6542 6803 9550 13606 16355 32710 34015 68030 81775 163550 170075 340150 624761 1249522 1299373 2598746 3123805 6247610 6496865 12993730 15619025 22252613 31238050 32484325 44505226 64968650 111263065 222526130 556315325 1112630650 4250249083 8500498166 21251245415 42502490830 106256227075 212512454150