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55310293750 = 2558849647
BaseRepresentation
bin110011100000110000…
…000001101011110110
312021202200002001012011
4303200300001223312
51401233413400000
641224215314434
73665432511505
oct634060015366
9167680061164
1055310293750
1121503245378
12a87737ba1a
1352a5c9188a
142969ac483c
15168ab902ba
hexce0c01af6

55310293750 has 24 divisors (see below), whose sum is σ = 103700175264. Its totient is φ = 22124115000.

The previous prime is 55310293721. The next prime is 55310293757. The reversal of 55310293750 is 5739201355.

It is a super-2 number, since 2×553102937502 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55310293757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4418574 + ... + 4431073.

It is an arithmetic number, because the mean of its divisors is an integer number (4320840636).

Almost surely, 255310293750 is an apocalyptic number.

55310293750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55310293750 is a deficient number, since it is larger than the sum of its proper divisors (48389881514).

55310293750 is an frugal number, since it uses more digits than its factorization.

55310293750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8849674 (or 8849654 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 40.

The spelling of 55310293750 in words is "fifty-five billion, three hundred ten million, two hundred ninety-three thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 625 1250 3125 6250 8849647 17699294 44248235 88496470 221241175 442482350 1106205875 2212411750 5531029375 11062058750 27655146875 55310293750