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10489531 = 131077541
BaseRepresentation
bin101000000000…
…111010111011
3201201220221011
4220000322323
510141131111
61012454351
7155105503
oct50007273
921656834
1010489531
115a14a38
12361a3b7
132233630
141570a03
15dc3021
hexa00ebb

10489531 has 8 divisors (see below), whose sum is σ = 11403504. Its totient is φ = 9590880.

The previous prime is 10489513. The next prime is 10489543. The reversal of 10489531 is 13598401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-10489531 is a prime.

It is a super-2 number, since 2×104895312 = 220060521199922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10489493 and 10489502.

It is not an unprimeable number, because it can be changed into a prime (10489511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (1425438).

Almost surely, 210489531 is an apocalyptic number.

10489531 is a deficient number, since it is larger than the sum of its proper divisors (913973).

10489531 is a wasteful number, since it uses less digits than its factorization.

10489531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 10489531 is about 3238.7545445742. The cubic root of 10489531 is about 218.9031563083.

The spelling of 10489531 in words is "ten million, four hundred eighty-nine thousand, five hundred thirty-one".

Divisors: 1 13 107 1391 7541 98033 806887 10489531