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48121666720 = 2551733173549
BaseRepresentation
bin101100110100010001…
…100101110010100000
311121012200101221202121
4230310101211302200
51242023121313340
634035022154024
73322333263301
oct546421456240
9147180357677
1048121666720
11194544764a6
1293aba22914
1346cb88410a
1424870a67a8
1513b9a1694a
hexb34465ca0

48121666720 has 48 divisors (see below), whose sum is σ = 113753694600. Its totient is φ = 19237448704.

The previous prime is 48121666673. The next prime is 48121666727. The reversal of 48121666720 is 2766612184.

It can be written as a sum of positive squares in 4 ways, for example, as 30514499856 + 17607166864 = 174684^2 + 132692^2 .

It is not an unprimeable number, because it can be changed into a prime (48121666727) 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, 190506 + ... + 364054.

Almost surely, 248121666720 is an apocalyptic number.

48121666720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48121666720 is an abundant number, since it is smaller than the sum of its proper divisors (65632027880).

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

48121666720 is a wasteful number, since it uses less digits than its factorization.

48121666720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175297 (or 175289 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 48121666720 in words is "forty-eight billion, one hundred twenty-one million, six hundred sixty-six thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1733 3466 6932 8665 13864 17330 27728 34660 55456 69320 138640 173549 277280 347098 694196 867745 1388392 1735490 2776784 3470980 5553568 6941960 13883920 27767840 300760417 601520834 1203041668 1503802085 2406083336 3007604170 4812166672 6015208340 9624333344 12030416680 24060833360 48121666720