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1077808900 = 225274672
BaseRepresentation
bin100000000111110…
…0000111100000100
32210010002100212011
41000033200330010
54201404341100
6254541104004
735465140000
oct10017407404
92703070764
101077808900
11503438863
12260b58004
131423b115c
14a3203700
1564950bba
hex403e0f04

1077808900 has 135 divisors (see below), whose sum is σ = 2769822069. Its totient is φ = 364019040.

The previous prime is 1077808847. The next prime is 1077808909. The reversal of 1077808900 is 98087701.

The square root of 1077808900 is 32830.

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., 388011204 + 689797696 = 19698^2 + 26264^2 .

It is not an unprimeable number, because it can be changed into a prime (1077808909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 16086667 + ... + 16086733.

Almost surely, 21077808900 is an apocalyptic number.

1077808900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1077808900 is the 32830-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1077808900

1077808900 is an abundant number, since it is smaller than the sum of its proper divisors (1692013169).

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

1077808900 is an frugal number, since it uses more digits than its factorization.

1077808900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 40.

The cubic root of 1077808900 is about 1025.2912596839.

Multiplying 1077808900 by its product of nonzero digits (28224), we get a square (30420078393600 = 55154402).

The spelling of 1077808900 in words is "one billion, seventy-seven million, eight hundred eight thousand, nine hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 67 70 98 100 134 140 175 196 245 268 335 343 350 469 490 670 686 700 938 980 1225 1340 1372 1675 1715 1876 2345 2401 2450 3283 3350 3430 4489 4690 4802 4900 6566 6700 6860 8575 8978 9380 9604 11725 12005 13132 16415 17150 17956 22445 22981 23450 24010 31423 32830 34300 44890 45962 46900 48020 60025 62846 65660 82075 89780 91924 112225 114905 120050 125692 157115 160867 164150 219961 224450 229810 240100 314230 321734 328300 439922 448900 459620 574525 628460 643468 785575 804335 879844 1099805 1149050 1539727 1571150 1608670 2199610 2298100 3079454 3142300 3217340 4021675 4399220 5499025 6158908 7698635 8043350 10778089 10998050 15397270 16086700 21556178 21996100 30794540 38493175 43112356 53890445 76986350 107780890 153972700 215561780 269452225 538904450 1077808900