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2078448100 = 2252472972
BaseRepresentation
bin111101111100010…
…1001100111100100
312100211222002210021
41323320221213210
513224040314400
6542124204524
7102335342311
oct17370514744
95324862707
102078448100
11977258903
124a0099744
132717b3261
1415a079d08
15c270b71a
hex7be299e4

2078448100 has 81 divisors (see below), whose sum is σ = 4656233883. Its totient is φ = 805301760.

The previous prime is 2078448049. The next prime is 2078448121. The reversal of 2078448100 is 18448702.

The square root of 2078448100 is 45590.

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

It can be written as a sum of positive squares in 4 ways, for example, as 76422564 + 2002025536 = 8742^2 + 44744^2 .

It is a super-2 number, since 2×20784481002 = 8639893008787220000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 21427252 + ... + 21427348.

Almost surely, 22078448100 is an apocalyptic number.

2078448100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2078448100 is the 45590-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2078448100

2078448100 is an abundant number, since it is smaller than the sum of its proper divisors (2577785783).

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

2078448100 is an equidigital number, since it uses as much as digits as its factorization.

2078448100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The cubic root of 2078448100 is about 1276.1833125656.

The spelling of 2078448100 in words is "two billion, seventy-eight million, four hundred forty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 47 50 94 97 100 188 194 235 388 470 485 940 970 1175 1940 2209 2350 2425 4418 4559 4700 4850 8836 9118 9409 9700 11045 18236 18818 22090 22795 37636 44180 45590 47045 55225 91180 94090 110450 113975 188180 214273 220900 227950 235225 428546 442223 455900 470450 857092 884446 940900 1071365 1768892 2142730 2211115 4285460 4422230 5356825 8844460 10713650 11055575 20784481 21427300 22111150 41568962 44222300 83137924 103922405 207844810 415689620 519612025 1039224050 2078448100