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1392666208180 = 2251333116182503
BaseRepresentation
bin10100010001000001010…
…111111110011110110100
311221010201022011120101121
4110101001113332132310
5140304140022130210
62543440530033324
7202421365310542
oct24210127763664
94833638146347
101392666208180
11497698849a15
121a5aa9118844
13a14354012a0
144b596600d92
152635e3ae6da
hex144415fe7b4

1392666208180 has 48 divisors (see below), whose sum is σ = 3159083700864. Its totient is φ = 512661663360.

The previous prime is 1392666208159. The next prime is 1392666208187. The reversal of 1392666208180 is 818026662931.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392666208187) 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, 8005192 + ... + 8177311.

It is an arithmetic number, because the mean of its divisors is an integer number (65814243768).

Almost surely, 21392666208180 is an apocalyptic number.

1392666208180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1392666208180 is an abundant number, since it is smaller than the sum of its proper divisors (1766417492684).

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

1392666208180 is a wasteful number, since it uses less digits than its factorization.

1392666208180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16182856 (or 16182854 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 1392666208180 in words is "one trillion, three hundred ninety-two billion, six hundred sixty-six million, two hundred eight thousand, one hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 331 662 1324 1655 3310 4303 6620 8606 17212 21515 43030 86060 16182503 32365006 64730012 80912515 161825030 210372539 323650060 420745078 841490156 1051862695 2103725390 4207450780 5356408493 10712816986 21425633972 26782042465 53564084930 69633310409 107128169860 139266620818 278533241636 348166552045 696333104090 1392666208180