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1023401031 = 32314831899
BaseRepresentation
bin111100111111111…
…101110001000111
32122022201011021220
4330333331301013
54043442313111
6245315011423
734234523322
oct7477756107
92568634256
101023401031
11485757384
12246899b73
13134041653
1499cbd7b9
155eca4e06
hex3cffdc47

1023401031 has 8 divisors (see below), whose sum is σ = 1423862400. Its totient is φ = 652603512.

The previous prime is 1023401023. The next prime is 1023401033. The reversal of 1023401031 is 1301043201.

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

It is not a de Polignac number, because 1023401031 - 23 = 1023401023 is a prime.

It is a super-2 number, since 2×10234010312 = 2094699340503725922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1023401031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023401033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7415881 + ... + 7416018.

It is an arithmetic number, because the mean of its divisors is an integer number (177982800).

Almost surely, 21023401031 is an apocalyptic number.

1023401031 is a deficient number, since it is larger than the sum of its proper divisors (400461369).

1023401031 is a wasteful number, since it uses less digits than its factorization.

1023401031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14831925.

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

The square root of 1023401031 is about 31990.6397403991. The cubic root of 1023401031 is about 1007.7402771974.

Adding to 1023401031 its reverse (1301043201), we get a palindrome (2324444232).

The spelling of 1023401031 in words is "one billion, twenty-three million, four hundred one thousand, thirty-one".

Divisors: 1 3 23 69 14831899 44495697 341133677 1023401031