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1312214200 = 235211596461
BaseRepresentation
bin100111000110110…
…1100110010111000
310101110011101110221
41032031230302320
510141411323300
6334113145424
744342431243
oct11615546270
93343141427
101312214200
1161378aa50
1230755b274
1317bb2360b
14c63c025a
157a30431a
hex4e36ccb8

1312214200 has 48 divisors (see below), whose sum is σ = 3328257960. Its totient is φ = 477168000.

The previous prime is 1312214179. The next prime is 1312214203. The reversal of 1312214200 is 24122131.

It is a super-2 number, since 2×13122142002 = 3443812213363280000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312214203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296031 + ... + 300430.

Almost surely, 21312214200 is an apocalyptic number.

1312214200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312214200 is an abundant number, since it is smaller than the sum of its proper divisors (2016043760).

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

1312214200 is a wasteful number, since it uses less digits than its factorization.

1312214200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596488 (or 596479 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1312214200 is about 36224.4972359866. The cubic root of 1312214200 is about 1094.8003083096.

Adding to 1312214200 its reverse (24122131), we get a palindrome (1336336331).

It can be divided in two parts, 1312 and 214200, that added together give a palindrome (215512).

The spelling of 1312214200 in words is "one billion, three hundred twelve million, two hundred fourteen thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 596461 1192922 2385844 2982305 4771688 5964610 6561071 11929220 13122142 14911525 23858440 26244284 29823050 32805355 52488568 59646100 65610710 119292200 131221420 164026775 262442840 328053550 656107100 1312214200