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123130343204 = 221113142150741
BaseRepresentation
bin111001010101100100…
…0111110111100100100
3102202211011110112002122
41302223020332330210
54004132331440304
6132322034325112
711616166435301
oct1625310767444
9382734415078
10123130343204
1148245961320
121ba44129798
13b7c38a765b
145d60d9c0a8
153309be49be
hex1cab23ef24

123130343204 has 48 divisors (see below), whose sum is σ = 237428718912. Its totient is φ = 55408080000.

The previous prime is 123130343191. The next prime is 123130343207. The reversal of 123130343204 is 402343031321.

It is a super-2 number, since 2×1231303432042 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123130343207) 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, 2401274 + ... + 2452014.

It is an arithmetic number, because the mean of its divisors is an integer number (4946431644).

Almost surely, 2123130343204 is an apocalyptic number.

It is an amenable number.

123130343204 is a deficient number, since it is larger than the sum of its proper divisors (114298375708).

123130343204 is a wasteful number, since it uses less digits than its factorization.

123130343204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51308 (or 51306 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 123130343204 its reverse (402343031321), we get a palindrome (525473374525).

The spelling of 123130343204 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred forty-three thousand, two hundred four".

Divisors: 1 2 4 11 22 44 131 262 421 524 842 1441 1684 2882 4631 5764 9262 18524 50741 55151 101482 110302 202964 220604 558151 606661 1116302 1213322 2232604 2426644 6647071 13294142 21361961 26588284 42723922 73117781 85447844 146235562 234981571 292471124 469963142 939926284 2798416891 5596833782 11193667564 30782585801 61565171602 123130343204