Search a number
-
+
2988371556 = 223430372
BaseRepresentation
bin1011001000011110…
…1110111001100100
321201021011000010000
42302013232321210
522110010342211
61212311101300
7134024511342
oct26207567144
97637130100
102988371556
1112a3948865
126b4971830
133881726c1
14204c5a992
15127548656
hexb21eee64

2988371556 has 45 divisors (see below), whose sum is σ = 7814766729. Its totient is φ = 995795856.

The previous prime is 2988371539. The next prime is 2988371579. The reversal of 2988371556 is 6551738892.

It can be divided in two parts, 2988 and 371556, that added together give a square (374544 = 6122).

The square root of 2988371556 is 54666.

It is a perfect power (a square), and thus also a powerful number.

2988371556 is a `hidden beast` number, since 2 + 9 + 8 + 83 + 7 + 1 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2531096100 + 457275456 = 50310^2 + 21384^2 .

It is a super-2 number, since 2×29883715562 = 17860729113419722272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 982470 + ... + 985506.

Almost surely, 22988371556 is an apocalyptic number.

2988371556 is the 54666-th square number.

It is an amenable number.

2988371556 is an abundant number, since it is smaller than the sum of its proper divisors (4826395173).

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

2988371556 is an frugal number, since it uses more digits than its factorization.

2988371556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090 (or 3042 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The cubic root of 2988371556 is about 1440.3836998343.

The spelling of 2988371556 in words is "two billion, nine hundred eighty-eight million, three hundred seventy-one thousand, five hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 3037 6074 9111 12148 18222 27333 36444 54666 81999 109332 163998 245997 327996 491994 983988 9223369 18446738 27670107 36893476 55340214 83010321 110680428 166020642 249030963 332041284 498061926 747092889 996123852 1494185778 2988371556