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1330794400 = 255213413121
BaseRepresentation
bin100111101010010…
…0100111110100000
310102202010100201111
41033110210332200
510211140410100
6340015313104
744656365025
oct11724447640
93382110644
101330794400
11623220591
1231181b794
1318292a710
14c8a5954c
157bc746ba
hex4f524fa0

1330794400 has 144 divisors (see below), whose sum is σ = 3585192408. Its totient is φ = 479232000.

The previous prime is 1330794389. The next prime is 1330794433. The reversal of 1330794400 is 44970331.

It can be written as a sum of positive squares in 12 ways, for example, as 432473616 + 898320784 = 20796^2 + 29972^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424840 + ... + 427960.

Almost surely, 21330794400 is an apocalyptic number.

1330794400 is a gapful number since it is divisible by the number (10) 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 1330794400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792596204).

1330794400 is an abundant number, since it is smaller than the sum of its proper divisors (2254398008).

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

1330794400 is a wasteful number, since it uses less digits than its factorization.

1330794400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195 (or 3182 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1330794400 is about 36480.0548245202. The cubic root of 1330794400 is about 1099.9433579649.

The spelling of 1330794400 in words is "one billion, three hundred thirty million, seven hundred ninety-four thousand, four hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 41 50 52 65 80 82 100 104 130 160 164 200 205 208 260 325 328 400 410 416 520 533 650 656 800 820 1025 1040 1066 1300 1312 1640 2050 2080 2132 2600 2665 3121 3280 4100 4264 5200 5330 6242 6560 8200 8528 10400 10660 12484 13325 15605 16400 17056 21320 24968 26650 31210 32800 40573 42640 49936 53300 62420 78025 81146 85280 99872 106600 124840 127961 156050 162292 202865 213200 249680 255922 312100 324584 405730 426400 499360 511844 624200 639805 649168 811460 1014325 1023688 1248400 1279610 1298336 1622920 1663493 2028650 2047376 2496800 2559220 3199025 3245840 3326986 4057300 4094752 5118440 6398050 6491680 6653972 8114600 8317465 10236880 12796100 13307944 16229200 16634930 20473760 25592200 26615888 32458400 33269860 41587325 51184400 53231776 66539720 83174650 102368800 133079440 166349300 266158880 332698600 665397200 1330794400