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55723246660 = 2257139241723
BaseRepresentation
bin110011111001010111…
…010100010001000100
312022211110010020002101
4303321113110101010
51403110122343120
641333210321444
74011605532034
oct637127242104
9168743106071
1055723246660
11216a5357a74
12a971729284
1353406b9b03
1429a889b8c4
1516b206190a
hexcf95d4444

55723246660 has 24 divisors (see below), whose sum is σ = 118666973376. Its totient is φ = 21975364320.

The previous prime is 55723246633. The next prime is 55723246669. The reversal of 55723246660 is 6664232755.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55723246660.

It is not an unprimeable number, because it can be changed into a prime (55723246669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19619442 + ... + 19622281.

It is an arithmetic number, because the mean of its divisors is an integer number (4944457224).

Almost surely, 255723246660 is an apocalyptic number.

It is an amenable number.

55723246660 is an abundant number, since it is smaller than the sum of its proper divisors (62943726716).

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

55723246660 is a wasteful number, since it uses less digits than its factorization.

55723246660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39241803 (or 39241801 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 55723246660 in words is "fifty-five billion, seven hundred twenty-three million, two hundred forty-six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 39241723 78483446 156966892 196208615 392417230 784834460 2786162333 5572324666 11144649332 13930811665 27861623330 55723246660