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10231013291 = 73271351659
BaseRepresentation
bin10011000011101000…
…01101111110101011
3222102000110022210012
421201310031332223
5131423114411131
64411114042135
7511351115042
oct114164157653
928360408705
1010231013291
11438015a794
121b9641934b
13c70812a25
146d0ad9559
153ed2e152b
hex261d0dfab

10231013291 has 8 divisors (see below), whose sum is σ = 10375187760. Its totient is φ = 10086947712.

The previous prime is 10231013279. The next prime is 10231013357. The reversal of 10231013291 is 19231013201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10231013291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10231013231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172220 + ... + 223878.

It is an arithmetic number, because the mean of its divisors is an integer number (1296898470).

Almost surely, 210231013291 is an apocalyptic number.

10231013291 is a deficient number, since it is larger than the sum of its proper divisors (144174469).

10231013291 is an equidigital number, since it uses as much as digits as its factorization.

10231013291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54445.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 10231013291 its reverse (19231013201), we get a palindrome (29462026492).

The spelling of 10231013291 in words is "ten billion, two hundred thirty-one million, thirteen thousand, two hundred ninety-one".

Divisors: 1 73 2713 51659 198049 3771107 140150867 10231013291