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1302222313212 = 223235305188937
BaseRepresentation
bin10010111100110010011…
…111111001011011111100
311121111021010000122211220
4102330302133321123330
5132313422403010322
62434122131313340
7163040166012552
oct22746237713374
94544233018756
101302222313212
114622a6601a87
1219046774b850
1395a5063c082
1447056793bd2
1523d1909d55c
hex12f327f96fc

1302222313212 has 48 divisors (see below), whose sum is σ = 3170723657472. Its totient is φ = 415188822400.

The previous prime is 1302222313201. The next prime is 1302222313219. The reversal of 1302222313212 is 2123132222031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302222313219) 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, 14597608 + ... + 14686544.

It is an arithmetic number, because the mean of its divisors is an integer number (66056742864).

Almost surely, 21302222313212 is an apocalyptic number.

1302222313212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1302222313212 is an abundant number, since it is smaller than the sum of its proper divisors (1868501344260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1302222313212 is a wasteful number, since it uses less digits than its factorization.

1302222313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142018 (or 142016 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1302222313212 its reverse (2123132222031), we get a palindrome (3425354535243).

The spelling of 1302222313212 in words is "one trillion, three hundred two billion, two hundred twenty-two million, three hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 53051 88937 106102 159153 177874 212204 266811 318306 355748 533622 636612 1067244 1220173 2045551 2440346 3660519 4091102 4880692 6136653 7321038 8182204 12273306 14642076 24546612 4718196787 9436393574 14154590361 18872787148 28309180722 56618361444 108518526101 217037052202 325555578303 434074104404 651111156606 1302222313212