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10031493 = 33343831
BaseRepresentation
bin100110010001…
…000110000101
3200212122121210
4212101012011
510032001433
6555002033
7151160223
oct46210605
920778553
1010031493
11573189a
123439319
132102cc4
141491b13
15d32463
hex991185

10031493 has 4 divisors (see below), whose sum is σ = 13375328. Its totient is φ = 6687660.

The previous prime is 10031459. The next prime is 10031533. The reversal of 10031493 is 39413001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10031493 - 28 = 10031237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1671913 + ... + 1671918.

It is an arithmetic number, because the mean of its divisors is an integer number (3343832).

Almost surely, 210031493 is an apocalyptic number.

It is an amenable number.

10031493 is a deficient number, since it is larger than the sum of its proper divisors (3343835).

10031493 is an equidigital number, since it uses as much as digits as its factorization.

10031493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343834.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 10031493 is about 3167.2532263777. The cubic root of 10031493 is about 215.6693973692.

Adding to 10031493 its reverse (39413001), we get a palindrome (49444494).

The spelling of 10031493 in words is "ten million, thirty-one thousand, four hundred ninety-three".

Divisors: 1 3 3343831 10031493