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2012468900 = 2252132193617
BaseRepresentation
bin111011111110011…
…1101011010100100
312012020211000100012
41313330331122210
513110143001100
6531410105352
7100604463161
oct16774753244
95166730305
102012468900
11942a93742
12481b7b258
13260c21900
141513c3068
15bba27135
hex77f3d6a4

2012468900 has 108 divisors (see below), whose sum is σ = 4761031212. Its totient is φ = 738017280.

The previous prime is 2012468863. The next prime is 2012468903. The reversal of 2012468900 is 98642102.

It can be written as a sum of positive squares in 18 ways, for example, as 1940931136 + 71537764 = 44056^2 + 8458^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012468903) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3261392 + ... + 3262008.

Almost surely, 22012468900 is an apocalyptic number.

2012468900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012468900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380515606).

2012468900 is an abundant number, since it is smaller than the sum of its proper divisors (2748562312).

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

2012468900 is a wasteful number, since it uses less digits than its factorization.

2012468900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 2012468900 is about 44860.5494839285. The cubic root of 2012468900 is about 1262.5339323625.

The spelling of 2012468900 in words is "two billion, twelve million, four hundred sixty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 169 193 260 325 338 386 617 650 676 772 845 965 1234 1300 1690 1930 2468 2509 3085 3380 3860 4225 4825 5018 6170 8021 8450 9650 10036 12340 12545 15425 16042 16900 19300 25090 30850 32084 32617 40105 50180 61700 62725 65234 80210 104273 119081 125450 130468 160420 163085 200525 208546 238162 250900 326170 401050 417092 476324 521365 595405 652340 802100 815425 1042730 1190810 1548053 1630850 2085460 2381620 2606825 2977025 3096106 3261700 5213650 5954050 6192212 7740265 10427300 11908100 15480530 20124689 30961060 38701325 40249378 77402650 80498756 100623445 154805300 201246890 402493780 503117225 1006234450 2012468900