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4977280 = 275711101
BaseRepresentation
bin10010111111001010000000
3100100212112201
4102333022000
52233233110
6254402544
760210010
oct22771200
910325481
104977280
11289a560
121800454
131053649
14937c40
15684b3a
hex4bf280

4977280 has 128 divisors (see below), whose sum is σ = 14981760. Its totient is φ = 1536000.

The previous prime is 4977263. The next prime is 4977317. The reversal of 4977280 is 827794.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49230 + ... + 49330.

It is an arithmetic number, because the mean of its divisors is an integer number (117045).

Almost surely, 24977280 is an apocalyptic number.

4977280 is a gapful number since it is divisible by the number (40) 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 4977280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7490880).

4977280 is an abundant number, since it is smaller than the sum of its proper divisors (10004480).

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

4977280 is a wasteful number, since it uses less digits than its factorization.

4977280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 4977280 is about 2230.9818466317. The cubic root of 4977280 is about 170.7381970123.

It can be divided in two parts, 497 and 7280, that added together give a palindrome (7777).

The spelling of 4977280 in words is "four million, nine hundred seventy-seven thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 55 56 64 70 77 80 88 101 110 112 128 140 154 160 176 202 220 224 280 308 320 352 385 404 440 448 505 560 616 640 704 707 770 808 880 896 1010 1111 1120 1232 1408 1414 1540 1616 1760 2020 2222 2240 2464 2828 3080 3232 3520 3535 4040 4444 4480 4928 5555 5656 6160 6464 7040 7070 7777 8080 8888 9856 11110 11312 12320 12928 14140 15554 16160 17776 22220 22624 24640 28280 31108 32320 35552 38885 44440 45248 49280 56560 62216 64640 71104 77770 88880 90496 113120 124432 142208 155540 177760 226240 248864 311080 355520 452480 497728 622160 711040 995456 1244320 2488640 4977280