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10506540 = 22351115919
BaseRepresentation
bin101000000101…
…000100101100
3201202210021010
4220011010230
510142202130
61013105220
7155206212
oct50050454
921683233
1010506540
115a267a0
123628210
13223b2b5
141576cb2
15dc80b0
hexa0512c

10506540 has 48 divisors (see below), whose sum is σ = 32094720. Its totient is φ = 2546880.

The previous prime is 10506533. The next prime is 10506541. The reversal of 10506540 is 4560501.

It is a happy number.

It is a super-2 number, since 2×105065402 = 220774765543200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10506541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7300 + ... + 8619.

It is an arithmetic number, because the mean of its divisors is an integer number (668640).

Almost surely, 210506540 is an apocalyptic number.

10506540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10506540 is an abundant number, since it is smaller than the sum of its proper divisors (21588180).

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

10506540 is a wasteful number, since it uses less digits than its factorization.

10506540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15942 (or 15940 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 10506540 is about 3241.3793360235. The cubic root of 10506540 is about 219.0214111382.

The spelling of 10506540 in words is "ten million, five hundred six thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 15919 31838 47757 63676 79595 95514 159190 175109 191028 238785 318380 350218 477570 525327 700436 875545 955140 1050654 1751090 2101308 2626635 3502180 5253270 10506540