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201202032440 = 2356749374527
BaseRepresentation
bin1011101101100010010…
…0110101111100111000
3201020100010010021000102
42323120210311330320
511244030210014230
6232233025454532
720351655025523
oct2733044657470
9636303107012
10201202032440
1178369335a42
1232bb21a1448
1315c86375786
149a499bdbba
155378c62045
hex2ed8935f38

201202032440 has 32 divisors (see below), whose sum is σ = 452717354880. Its totient is φ = 80478540672.

The previous prime is 201202032397. The next prime is 201202032443. The reversal of 201202032440 is 44230202102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202032443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2662457 + ... + 2736983.

It is an arithmetic number, because the mean of its divisors is an integer number (14147417340).

Almost surely, 2201202032440 is an apocalyptic number.

201202032440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201202032440 is an abundant number, since it is smaller than the sum of its proper divisors (251515322440).

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

201202032440 is a wasteful number, since it uses less digits than its factorization.

201202032440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142031 (or 142027 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 201202032440 its reverse (44230202102), we get a palindrome (245432234542).

The spelling of 201202032440 in words is "two hundred one billion, two hundred two million, thirty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 67493 74527 134986 149054 269972 298108 337465 372635 539944 596216 674930 745270 1349860 1490540 2699720 2981080 5030050811 10060101622 20120203244 25150254055 40240406488 50300508110 100601016220 201202032440