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1026042031 = 7146577433
BaseRepresentation
bin111101001010000…
…010100010101111
32122111200100001201
4331022002202233
54100131321111
6245451350331
734266133120
oct7512024257
92574610051
101026042031
114871a0623
122477523a7
13134757781
149a3aa047
15601276c1
hex3d2828af

1026042031 has 4 divisors (see below), whose sum is σ = 1172619472. Its totient is φ = 879464592.

The previous prime is 1026042023. The next prime is 1026042077. The reversal of 1026042031 is 1302406201.

1026042031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1302406201 = 1597815533.

It is a cyclic number.

It is not a de Polignac number, because 1026042031 - 23 = 1026042023 is a prime.

It is a super-2 number, since 2×10260420312 = 2105524498757209922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026042091) 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, 73288710 + ... + 73288723.

It is an arithmetic number, because the mean of its divisors is an integer number (293154868).

Almost surely, 21026042031 is an apocalyptic number.

1026042031 is a deficient number, since it is larger than the sum of its proper divisors (146577441).

1026042031 is an equidigital number, since it uses as much as digits as its factorization.

1026042031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146577440.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1026042031 is about 32031.8908433455. The cubic root of 1026042031 is about 1008.6063944821.

Adding to 1026042031 its reverse (1302406201), we get a palindrome (2328448232).

The spelling of 1026042031 in words is "one billion, twenty-six million, forty-two thousand, thirty-one".

Divisors: 1 7 146577433 1026042031