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10432981 = 136531229
BaseRepresentation
bin100111110011…
…000111010101
3201122001100201
4213303013111
510132323411
61011340501
7154451566
oct47630725
921561321
1010432981
1159864a9
1235b1731
132213980
14155816d
15db13c1
hex9f31d5

10432981 has 8 divisors (see below), whose sum is σ = 11261880. Its totient is φ = 9607872.

The previous prime is 10432979. The next prime is 10432987. The reversal of 10432981 is 18923401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1522756 + 8910225 = 1234^2 + 2985^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10432981 - 21 = 10432979 is a prime.

It is a super-2 number, since 2×104329812 = 217694185092722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10432987) 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, 7875 + ... + 9103.

It is an arithmetic number, because the mean of its divisors is an integer number (1407735).

Almost surely, 210432981 is an apocalyptic number.

It is an amenable number.

10432981 is a deficient number, since it is larger than the sum of its proper divisors (828899).

10432981 is a wasteful number, since it uses less digits than its factorization.

10432981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 10432981 is about 3230.0125386754. The cubic root of 10432981 is about 218.5090717764.

It can be divided in two parts, 104329 and 81, that multiplied together give a square (8450649 = 29072).

The spelling of 10432981 in words is "ten million, four hundred thirty-two thousand, nine hundred eighty-one".

Divisors: 1 13 653 1229 8489 15977 802537 10432981