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2231323293 = 31814109251
BaseRepresentation
bin1000010011111111…
…0100101010011101
312202111121222010110
42010333310222131
514032204321133
61005225000233
7106202635503
oct20477645235
95674558113
102231323293
11a45584241
12523323079
1329737aa54
141724b2673
15d0d57c63
hex84ff4a9d

2231323293 has 8 divisors (see below), whose sum is σ = 2991535456. Its totient is φ = 1479330000.

The previous prime is 2231323291. The next prime is 2231323327. The reversal of 2231323293 is 3923231322.

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

It is not a de Polignac number, because 2231323293 - 21 = 2231323291 is a prime.

It is a super-3 number, since 3×22313232933 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231323293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231323291) 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, 2054083 + ... + 2055168.

It is an arithmetic number, because the mean of its divisors is an integer number (373941932).

Almost surely, 22231323293 is an apocalyptic number.

It is an amenable number.

2231323293 is a deficient number, since it is larger than the sum of its proper divisors (760212163).

2231323293 is a wasteful number, since it uses less digits than its factorization.

2231323293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109435.

The product of its digits is 11664, while the sum is 30.

The square root of 2231323293 is about 47236.8848782390. The cubic root of 2231323293 is about 1306.7349282837.

The spelling of 2231323293 in words is "two billion, two hundred thirty-one million, three hundred twenty-three thousand, two hundred ninety-three".

Divisors: 1 3 181 543 4109251 12327753 743774431 2231323293