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10507540 = 225525377
BaseRepresentation
bin101000000101…
…010100010100
3201202211122011
4220011110110
510142220130
61013114004
7155212141
oct50052424
921684564
1010507540
115a2751a
123628904
13223b8a4
1415773c8
15dc852a
hexa05514

10507540 has 12 divisors (see below), whose sum is σ = 22065876. Its totient is φ = 4203008.

The previous prime is 10507529. The next prime is 10507559. The reversal of 10507540 is 4570501.

It can be written as a sum of positive squares in 2 ways, for example, as 1483524 + 9024016 = 1218^2 + 3004^2 .

It is a super-2 number, since 2×105075402 = 220816793703200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262669 + ... + 262708.

It is an arithmetic number, because the mean of its divisors is an integer number (1838823).

Almost surely, 210507540 is an apocalyptic number.

10507540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10507540 is an abundant number, since it is smaller than the sum of its proper divisors (11558336).

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

10507540 is a wasteful number, since it uses less digits than its factorization.

10507540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525386 (or 525384 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 10507540 is about 3241.5335876711. The cubic root of 10507540 is about 219.0283596504.

The spelling of 10507540 in words is "ten million, five hundred seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 525377 1050754 2101508 2626885 5253770 10507540