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2728896288 = 253292713617
BaseRepresentation
bin1010001010100111…
…1010011100100000
321001011220021221220
42202221322130200
521042044140123
61130441415040
7124424143566
oct24251723440
97034807856
102728896288
111180433198
12641a9a480
13346493241
141bc5d5a36
1510e891ce3
hexa2a7a720

2728896288 has 96 divisors (see below), whose sum is σ = 7439765760. Its totient is φ = 874782720.

The previous prime is 2728896283. The next prime is 2728896307. The reversal of 2728896288 is 8826988272.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (2728896283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752656 + ... + 756272.

It is an arithmetic number, because the mean of its divisors is an integer number (77497560).

Almost surely, 22728896288 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 2728896288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3719882880).

2728896288 is an abundant number, since it is smaller than the sum of its proper divisors (4710869472).

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

2728896288 is a wasteful number, since it uses less digits than its factorization.

2728896288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930 (or 3922 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 60.

The square root of 2728896288 is about 52238.8388844928. The cubic root of 2728896288 is about 1397.4266141701.

The spelling of 2728896288 in words is "two billion, seven hundred twenty-eight million, eight hundred ninety-six thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 29 32 48 58 87 96 116 174 232 271 348 464 542 696 813 928 1084 1392 1626 2168 2784 3252 3617 4336 6504 7234 7859 8672 10851 13008 14468 15718 21702 23577 26016 28936 31436 43404 47154 57872 62872 86808 94308 104893 115744 125744 173616 188616 209786 251488 314679 347232 377232 419572 629358 754464 839144 980207 1258716 1678288 1960414 2517432 2940621 3356576 3920828 5034864 5881242 7841656 10069728 11762484 15683312 23524968 28426003 31366624 47049936 56852006 85278009 94099872 113704012 170556018 227408024 341112036 454816048 682224072 909632096 1364448144 2728896288