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10531062240 = 253521939713
BaseRepresentation
bin10011100111011001…
…10100000111100000
31000011221001101120020
421303230310013200
5133031422442430
64500553113440
7521653360236
oct116354640740
930157041506
1010531062240
114514567a26
12205a9b8880
13cbaa29b9a
1471c8c2956
1541980eb10
hex273b341e0

10531062240 has 48 divisors (see below), whose sum is σ = 33172847568. Its totient is φ = 2808283136.

The previous prime is 10531062239. The next prime is 10531062259. The reversal of 10531062240 is 4226013501.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×105310622402 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10531062240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10969377 + ... + 10970336.

It is an arithmetic number, because the mean of its divisors is an integer number (691100991).

Almost surely, 210531062240 is an apocalyptic number.

10531062240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10531062240 is an abundant number, since it is smaller than the sum of its proper divisors (22641785328).

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

10531062240 is a wasteful number, since it uses less digits than its factorization.

10531062240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21939731 (or 21939723 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 10531062240 its reverse (4226013501), we get a palindrome (14757075741).

The spelling of 10531062240 in words is "ten billion, five hundred thirty-one million, sixty-two thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 21939713 43879426 65819139 87758852 109698565 131638278 175517704 219397130 263276556 329095695 351035408 438794260 526553112 658191390 702070816 877588520 1053106224 1316382780 1755177040 2106212448 2632765560 3510354080 5265531120 10531062240