Search a number
-
+
77054976 = 21034929
BaseRepresentation
bin1001001011111…
…00010000000000
312100222210120000
410211330100000
5124211224401
611351320000
71623646035
oct445742000
9170883500
1077054976
113a54a5a9
1221980000
1312c6ba7b
14a33b38c
156b71186
hex497c400

77054976 has 110 divisors (see below), whose sum is σ = 230348910. Its totient is φ = 25657344.

The previous prime is 77054963. The next prime is 77054981. The reversal of 77054976 is 67945077.

It can be written as a sum of positive squares in only one way, i.e., 43877376 + 33177600 = 6624^2 + 5760^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 82480 + ... + 83408.

It is an arithmetic number, because the mean of its divisors is an integer number (2094081).

Almost surely, 277054976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77054976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115174455).

77054976 is an abundant number, since it is smaller than the sum of its proper divisors (153293934).

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

77054976 is an equidigital number, since it uses as much as digits as its factorization.

77054976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 77054976 is about 8778.0963767778. The cubic root of 77054976 is about 425.5333115778.

The spelling of 77054976 in words is "seventy-seven million, fifty-four thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 512 576 648 768 864 929 1024 1152 1296 1536 1728 1858 2304 2592 2787 3072 3456 3716 4608 5184 5574 6912 7432 8361 9216 10368 11148 13824 14864 16722 20736 22296 25083 27648 29728 33444 41472 44592 50166 59456 66888 75249 82944 89184 100332 118912 133776 150498 178368 200664 237824 267552 300996 356736 401328 475648 535104 601992 713472 802656 951296 1070208 1203984 1426944 1605312 2140416 2407968 2853888 3210624 4280832 4815936 6421248 8561664 9631872 12842496 19263744 25684992 38527488 77054976