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1316238400 = 26529072
BaseRepresentation
bin100111001110100…
…0011010001000000
310101201201211122101
41032131003101000
510143424112100
6334335320144
744421561511
oct11635032100
93351654571
101316238400
11615a89434
12308980054
1317c9021b9
14c6b4aa08
157a84b86a
hex4e743440

1316238400 has 63 divisors (see below), whose sum is σ = 3242343909. Its totient is φ = 525914880.

The previous prime is 1316238367. The next prime is 1316238437. The reversal of 1316238400 is 48326131.

The square root of 1316238400 is 36280.

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., 473845824 + 842392576 = 21768^2 + 29024^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1450747 + ... + 1451653.

Almost surely, 21316238400 is an apocalyptic number.

1316238400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1316238400 is the 36280-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316238400

1316238400 is an abundant number, since it is smaller than the sum of its proper divisors (1926105509).

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

1316238400 is an frugal number, since it uses more digits than its factorization.

1316238400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The cubic root of 1316238400 is about 1095.9183166787.

The spelling of 1316238400 in words is "one billion, three hundred sixteen million, two hundred thirty-eight thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 907 1600 1814 3628 4535 7256 9070 14512 18140 22675 29024 36280 45350 58048 72560 90700 145120 181400 290240 362800 725600 822649 1451200 1645298 3290596 4113245 6581192 8226490 13162384 16452980 20566225 26324768 32905960 41132450 52649536 65811920 82264900 131623840 164529800 263247680 329059600 658119200 1316238400