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12302144323 = 714954721563
BaseRepresentation
bin10110111010100001…
…11101001101000011
31011202100122200102221
423131100331031003
5200143322104243
65352421351511
7613600333660
oct133520751503
934670580387
1012302144323
115243270127
122473b68597
131210933651
14849bcca67
154c0054bed
hex2dd43d343

12302144323 has 16 divisors (see below), whose sum is σ = 14180486400. Its totient is φ = 10454292576.

The previous prime is 12302144311. The next prime is 12302144359. The reversal of 12302144323 is 32344120321.

It is not a de Polignac number, because 12302144323 - 29 = 12302143811 is a prime.

It is a super-2 number, since 2×123021443232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12302144303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559740 + ... + 581302.

It is an arithmetic number, because the mean of its divisors is an integer number (886280400).

Almost surely, 212302144323 is an apocalyptic number.

12302144323 is a deficient number, since it is larger than the sum of its proper divisors (1878342077).

12302144323 is a wasteful number, since it uses less digits than its factorization.

12302144323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22266.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12302144323 its reverse (32344120321), we get a palindrome (44646264644).

The spelling of 12302144323 in words is "twelve billion, three hundred two million, one hundred forty-four thousand, three hundred twenty-three".

Divisors: 1 7 149 547 1043 3829 21563 81503 150941 570521 3212887 11794961 22490209 82564727 1757449189 12302144323