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23223021031 = 75661158603
BaseRepresentation
bin10101101000001100…
…110010110111100111
32012221110012200221001
4111220030302313213
5340030043133111
614400221534131
71451326264450
oct255014626747
965843180831
1023223021031
119937876471
124601414347
132261346982
1411a4384127
1590dbb51c1
hex568332de7

23223021031 has 8 divisors (see below), whose sum is σ = 26541517184. Its totient is φ = 19904755320.

The previous prime is 23223021023. The next prime is 23223021047. The reversal of 23223021031 is 13012032232.

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 23223021031 - 23 = 23223021023 is a prime.

It is a super-2 number, since 2×232230210312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223021011) 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 7 ways as a sum of consecutive naturals, for example, 366976 + ... + 425578.

It is an arithmetic number, because the mean of its divisors is an integer number (3317689648).

Almost surely, 223223021031 is an apocalyptic number.

23223021031 is a deficient number, since it is larger than the sum of its proper divisors (3318496153).

23223021031 is an equidigital number, since it uses as much as digits as its factorization.

23223021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115221.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23223021031 its reverse (13012032232), we get a palindrome (36235053263).

The spelling of 23223021031 in words is "twenty-three billion, two hundred twenty-three million, twenty-one thousand, thirty-one".

Divisors: 1 7 56611 58603 396277 410221 3317574433 23223021031