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10642742631580 = 225910958418831
BaseRepresentation
bin1001101011011111010011…
…1001001101110010011100
31101200102210000212222001111
42122313310321031302130
52343332314103202310
634345113010151404
72145625040514463
oct232676471156234
941612700788044
1010642742631580
11343361a83a324
12123a774b82564
135c27b612a2b7
1428b17bd0d9da
15136c9744e28a
hex9adf4e4dc9c

10642742631580 has 24 divisors (see below), whose sum is σ = 22352213499840. Its totient is φ = 4256629629120.

The previous prime is 10642742631571. The next prime is 10642742631581. The reversal of 10642742631580 is 8513624724601.

It is a super-2 number, since 2×106427426315802 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642742631581) 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, 29027236 + ... + 29391595.

It is an arithmetic number, because the mean of its divisors is an integer number (931342229160).

Almost surely, 210642742631580 is an apocalyptic number.

10642742631580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10642742631580 is an abundant number, since it is smaller than the sum of its proper divisors (11709470868260).

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

10642742631580 is a wasteful number, since it uses less digits than its factorization.

10642742631580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58427949 (or 58427947 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 10642742631580 in words is "ten trillion, six hundred forty-two billion, seven hundred forty-two million, six hundred thirty-one thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 9109 18218 36436 45545 91090 182180 58418831 116837662 233675324 292094155 584188310 1168376620 532137131579 1064274263158 2128548526316 2660685657895 5321371315790 10642742631580