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10321431 = 317202381
BaseRepresentation
bin100111010111…
…111000010111
3201102101100020
4213113320113
510120241211
61005120223
7153505431
oct47277027
921371306
1010321431
11590a70a
123559073
1321a4c73
141529651
15d8d306
hex9d7e17

10321431 has 8 divisors (see below), whose sum is σ = 14571504. Its totient is φ = 6476160.

The previous prime is 10321403. The next prime is 10321439. The reversal of 10321431 is 13412301.

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

It is not a de Polignac number, because 10321431 - 211 = 10319383 is a prime.

It is a super-2 number, since 2×103214312 = 213063875775522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10321431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321439) 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, 101140 + ... + 101241.

It is an arithmetic number, because the mean of its divisors is an integer number (1821438).

Almost surely, 210321431 is an apocalyptic number.

10321431 is a deficient number, since it is larger than the sum of its proper divisors (4250073).

10321431 is a wasteful number, since it uses less digits than its factorization.

10321431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202401.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10321431 is about 3212.6983985429. The cubic root of 10321431 is about 217.7275093284.

Adding to 10321431 its reverse (13412301), we get a palindrome (23733732).

The spelling of 10321431 in words is "ten million, three hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 3 17 51 202381 607143 3440477 10321431