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4278468100 = 22523122112
BaseRepresentation
bin1111111100000100…
…0011111000000100
3102001011200200212111
43333001003320010
532230241434400
61544314230404
7211011243634
oct37701037004
912034620774
104278468100
1118a60a1455
129b4a25404
13532520a3a
142c83206c4
151a092e3ba
hexff043e04

4278468100 has 81 divisors (see below), whose sum is σ = 9639111573. Its totient is φ = 1648332000.

The previous prime is 4278468097. The next prime is 4278468113. The reversal of 4278468100 is 18648724.

The square root of 4278468100 is 65410.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1540248516 + 2738219584 = 39246^2 + 52328^2 .

It is a super-2 number, since 2×42784681002 = 36610578565435220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20276995 + ... + 20277205.

Almost surely, 24278468100 is an apocalyptic number.

4278468100 is the 65410-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4278468100

4278468100 is an abundant number, since it is smaller than the sum of its proper divisors (5360643473).

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

4278468100 is a wasteful number, since it uses less digits than its factorization.

4278468100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The cubic root of 4278468100 is about 1623.4145451498.

The spelling of 4278468100 in words is "four billion, two hundred seventy-eight million, four hundred sixty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 31 50 62 100 124 155 211 310 422 620 775 844 961 1055 1550 1922 2110 3100 3844 4220 4805 5275 6541 9610 10550 13082 19220 21100 24025 26164 32705 44521 48050 65410 89042 96100 130820 163525 178084 202771 222605 327050 405542 445210 654100 811084 890420 1013855 1113025 1380151 2027710 2226050 2760302 4055420 4452100 5069275 5520604 6900755 10138550 13801510 20277100 27603020 34503775 42784681 69007550 85569362 138015100 171138724 213923405 427846810 855693620 1069617025 2139234050 4278468100