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1031214023 = 7147316289
BaseRepresentation
bin111101011101110…
…001001111000111
32122212102002200222
4331131301033013
54102442322043
6250154254555
734361113610
oct7535611707
92585362628
101031214023
1148a1033a4
1224942745b
13135848918
149ad54c07
15607e9d68
hex3d7713c7

1031214023 has 4 divisors (see below), whose sum is σ = 1178530320. Its totient is φ = 883897728.

The previous prime is 1031213971. The next prime is 1031214029. The reversal of 1031214023 is 3204121301.

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

It is not a de Polignac number, because 1031214023 - 26 = 1031213959 is a prime.

It is a super-2 number, since 2×10312140232 = 2126804722463689058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031213992 and 1031214010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031214029) 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 3 ways as a sum of consecutive naturals, for example, 73658138 + ... + 73658151.

It is an arithmetic number, because the mean of its divisors is an integer number (294632580).

Almost surely, 21031214023 is an apocalyptic number.

1031214023 is a deficient number, since it is larger than the sum of its proper divisors (147316297).

1031214023 is an equidigital number, since it uses as much as digits as its factorization.

1031214023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147316296.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1031214023 is about 32112.5212806469. The cubic root of 1031214023 is about 1010.2982561953.

Adding to 1031214023 its reverse (3204121301), we get a palindrome (4235335324).

The spelling of 1031214023 in words is "one billion, thirty-one million, two hundred fourteen thousand, twenty-three".

Divisors: 1 7 147316289 1031214023