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10031202023 = 77191129953
BaseRepresentation
bin10010101011110011…
…11111111011100111
3221220002110212020212
421111321333323213
5131020441431043
64335215250035
7503403544643
oct112571777347
927802425225
1010031202023
114288396607
121b3b51991b
13c3b2c35cb
146b2365c23
153da9c3018
hex255e7fee7

10031202023 has 4 divisors (see below), whose sum is σ = 10031409168. Its totient is φ = 10030994880.

The previous prime is 10031201989. The next prime is 10031202029. The reversal of 10031202023 is 32020213001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32020213001 = 74574316143.

It is a cyclic number.

It is not a de Polignac number, because 10031202023 - 28 = 10031201767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10031201989 and 10031202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031202029) 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, 12215 + ... + 142167.

It is an arithmetic number, because the mean of its divisors is an integer number (2507852292).

Almost surely, 210031202023 is an apocalyptic number.

10031202023 is a deficient number, since it is larger than the sum of its proper divisors (207145).

10031202023 is an equidigital number, since it uses as much as digits as its factorization.

10031202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207144.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 10031202023 its reverse (32020213001), we get a palindrome (42051415024).

The spelling of 10031202023 in words is "ten billion, thirty-one million, two hundred two thousand, twenty-three".

Divisors: 1 77191 129953 10031202023