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10540397 = 77320627
BaseRepresentation
bin101000001101…
…010101101101
3201211111201002
4220031111231
510144243042
61013530045
7155410010
oct50152555
921744632
1010540397
115a4a17a
123643925
13225082a
141585377
15dd3132
hexa0d56d

10540397 has 8 divisors (see below), whose sum is σ = 12211776. Its totient is φ = 8910432.

The previous prime is 10540381. The next prime is 10540423. The reversal of 10540397 is 79304501.

10540397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10540397 - 24 = 10540381 is a prime.

It is a super-3 number, since 3×105403973 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10540337) 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, 9803 + ... + 10824.

It is an arithmetic number, because the mean of its divisors is an integer number (1526472).

Almost surely, 210540397 is an apocalyptic number.

It is an amenable number.

10540397 is a deficient number, since it is larger than the sum of its proper divisors (1671379).

10540397 is an equidigital number, since it uses as much as digits as its factorization.

10540397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20707.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 10540397 is about 3246.5977576534. The cubic root of 10540397 is about 219.2564221199.

Adding to 10540397 its reverse (79304501), we get a palindrome (89844898).

The spelling of 10540397 in words is "ten million, five hundred forty thousand, three hundred ninety-seven".

Divisors: 1 7 73 511 20627 144389 1505771 10540397