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1305374800900 = 225261218732
BaseRepresentation
bin10010111111101110011…
…001101011110000000100
311121210101210222121222011
4102333232121223300010
5132341401422112100
62435403024144004
7163211255506012
oct22775631536004
94553353877864
101305374800900
11463674053705
12190ba7468004
13961337b38c1
14472753318b2
1523e50c13bba
hex12fee66bc04

1305374800900 has 81 divisors (see below), whose sum is σ = 2881400072733. Its totient is φ = 513315878400.

The previous prime is 1305374800889. The next prime is 1305374800913. The reversal of 1305374800900 is 90084735031.

The square root of 1305374800900 is 1142530.

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

It can be written as a sum of positive squares in 13 ways, for example, as 910448022276 + 394926778624 = 954174^2 + 628432^2 .

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, 696942364 + ... + 696944236.

Almost surely, 21305374800900 is an apocalyptic number.

1305374800900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1305374800900 is the 1142530-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1305374800900

1305374800900 is an abundant number, since it is smaller than the sum of its proper divisors (1576025271833).

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

1305374800900 is an frugal number, since it uses more digits than its factorization.

1305374800900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 1305374800900 in words is "one trillion, three hundred five billion, three hundred seventy-four million, eight hundred thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 61 100 122 244 305 610 1220 1525 1873 3050 3721 3746 6100 7442 7492 9365 14884 18605 18730 37210 37460 46825 74420 93025 93650 114253 186050 187300 228506 372100 457012 571265 1142530 2285060 2856325 3508129 5712650 6969433 7016258 11425300 13938866 14032516 17540645 27877732 34847165 35081290 69694330 70162580 87703225 139388660 174235825 175406450 213995869 348471650 350812900 427991738 696943300 855983476 1069979345 2139958690 4279917380 5349896725 10699793450 13053748009 21399586900 26107496018 52214992036 65268740045 130537480090 261074960180 326343700225 652687400450 1305374800900