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10323220031 = 19231536801
BaseRepresentation
bin10011001110100111…
…11101011000111111
3222122102221220122122
421213103331120333
5132120221020111
64424210233155
7513550631255
oct114723753077
928572856578
1010323220031
114418209003
1220012857bb
13c86958227
146dd05c5d5
15406456cdb
hex2674fd63f

10323220031 has 4 divisors (see below), whose sum is σ = 10323776064. Its totient is φ = 10322664000.

The previous prime is 10323220003. The next prime is 10323220043. The reversal of 10323220031 is 13002232301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13002232301 = 79164585219.

It is a cyclic number.

It is not a de Polignac number, because 10323220031 - 214 = 10323203647 is a prime.

It is a super-2 number, since 2×103232200312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10323219991 and 10323220009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10323220001) 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, 249170 + ... + 287631.

It is an arithmetic number, because the mean of its divisors is an integer number (2580944016).

Almost surely, 210323220031 is an apocalyptic number.

10323220031 is a deficient number, since it is larger than the sum of its proper divisors (556033).

10323220031 is an equidigital number, since it uses as much as digits as its factorization.

10323220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556032.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 10323220031 its reverse (13002232301), we get a palindrome (23325452332).

The spelling of 10323220031 in words is "ten billion, three hundred twenty-three million, two hundred twenty thousand, thirty-one".

Divisors: 1 19231 536801 10323220031