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1010126431 = 1953164549
BaseRepresentation
bin111100001101010…
…100111001011111
32121101201201222001
4330031110321133
54032043021211
6244122303131
734013635006
oct7415247137
92541651861
101010126431
1147920aa36
12242357aa7
13131374462
1498225c3d
155da31ac1
hex3c354e5f

1010126431 has 4 divisors (see below), whose sum is σ = 1063291000. Its totient is φ = 956961864.

The previous prime is 1010126407. The next prime is 1010126449. The reversal of 1010126431 is 1346210101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1010126431 - 227 = 875908703 is a prime.

It is a super-2 number, since 2×10101264312 = 2040710813209595522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 53164549 = 1010126431 / (1 + 0 + 1 + 0 + 1 + 2 + 6 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010126399 and 1010126408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010126401) 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, 26582256 + ... + 26582293.

It is an arithmetic number, because the mean of its divisors is an integer number (265822750).

Almost surely, 21010126431 is an apocalyptic number.

1010126431 is a deficient number, since it is larger than the sum of its proper divisors (53164569).

1010126431 is an equidigital number, since it uses as much as digits as its factorization.

1010126431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53164568.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1010126431 is about 31782.4862306271. The cubic root of 1010126431 is about 1003.3641468249.

Adding to 1010126431 its reverse (1346210101), we get a palindrome (2356336532).

The spelling of 1010126431 in words is "one billion, ten million, one hundred twenty-six thousand, four hundred thirty-one".

Divisors: 1 19 53164549 1010126431