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10311020430 = 235343700681
BaseRepresentation
bin10011001101001010…
…11010111110001110
3222121121000002221120
421212211122332032
5132104110123210
64423052541410
7513342141024
oct114645327616
928547002846
1010311020430
114411336297
121bb9181866
13c84276429
146db5a4714
15405347270
hex26695af8e

10311020430 has 16 divisors (see below), whose sum is σ = 24746449104. Its totient is φ = 2749605440.

The previous prime is 10311020429. The next prime is 10311020431. The reversal of 10311020430 is 3402011301.

It is an interprime number because it is at equal distance from previous prime (10311020429) and next prime (10311020431).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311020431) 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, 171850311 + ... + 171850370.

It is an arithmetic number, because the mean of its divisors is an integer number (1546653069).

Almost surely, 210311020430 is an apocalyptic number.

10311020430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10311020430 is an abundant number, since it is smaller than the sum of its proper divisors (14435428674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10311020430 is a wasteful number, since it uses less digits than its factorization.

10311020430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343700691.

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

Adding to 10311020430 its reverse (3402011301), we get a palindrome (13713031731).

The spelling of 10311020430 in words is "ten billion, three hundred eleven million, twenty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 343700681 687401362 1031102043 1718503405 2062204086 3437006810 5155510215 10311020430