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2148662554 = 21074331277
BaseRepresentation
bin1000000000010001…
…1111110100011010
312112202002100220121
42000010133310122
513400024200204
6553113143454
7104150221213
oct20004376432
95482070817
102148662554
11a02955a85
124bb6bab8a
132831c857c
1416551640a
15c897ab54
hex8011fd1a

2148662554 has 4 divisors (see below), whose sum is σ = 3222993834. Its totient is φ = 1074331276.

The previous prime is 2148662539. The next prime is 2148662573. The reversal of 2148662554 is 4552668412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1282714225 + 865948329 = 35815^2 + 29427^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2148662554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537165637 + ... + 537165640.

Almost surely, 22148662554 is an apocalyptic number.

2148662554 is a deficient number, since it is larger than the sum of its proper divisors (1074331280).

2148662554 is a wasteful number, since it uses less digits than its factorization.

2148662554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074331279.

The product of its digits is 460800, while the sum is 43.

The square root of 2148662554 is about 46353.6681827879. The cubic root of 2148662554 is about 1290.3951985086.

The spelling of 2148662554 in words is "two billion, one hundred forty-eight million, six hundred sixty-two thousand, five hundred fifty-four".

Divisors: 1 2 1074331277 2148662554