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10020031023 = 314992228159
BaseRepresentation
bin10010101010011110…
…11000101000101111
3221212022110022112010
421111033120220233
5131010111443043
64334140012303
7503206600302
oct112517305057
927768408463
1010020031023
114282056682
121b37831093
13c38bb1a52
146b0a98b39
153d9a18133
hex2553d8a2f

10020031023 has 8 divisors (see below), whose sum is σ = 13368960000. Its totient is φ = 6675561368.

The previous prime is 10020031009. The next prime is 10020031037. The reversal of 10020031023 is 32013002001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10020031009) and next prime (10020031037).

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

It is a cyclic number.

It is not a de Polignac number, because 10020031023 - 25 = 10020030991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020032023) 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, 1109583 + ... + 1118576.

It is an arithmetic number, because the mean of its divisors is an integer number (1671120000).

Almost surely, 210020031023 is an apocalyptic number.

10020031023 is a deficient number, since it is larger than the sum of its proper divisors (3348928977).

10020031023 is a wasteful number, since it uses less digits than its factorization.

10020031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229661.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 10020031023 its reverse (32013002001), we get a palindrome (42033033024).

The spelling of 10020031023 in words is "ten billion, twenty million, thirty-one thousand, twenty-three".

Divisors: 1 3 1499 4497 2228159 6684477 3340010341 10020031023