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2154800552 = 23269350069
BaseRepresentation
bin1000000001101111…
…1010010110101000
312120011122012122212
42000123322112220
513403112104202
6553452504252
7104253334232
oct20033722650
95504565585
102154800552
11a06368603
1250177b088
13284567318
14166273252
15c928e652
hex806fa5a8

2154800552 has 8 divisors (see below), whose sum is σ = 4040251050. Its totient is φ = 1077400272.

The previous prime is 2154800533. The next prime is 2154800567. The reversal of 2154800552 is 2550084512.

It can be written as a sum of positive squares in only one way, i.e., 2043582436 + 111218116 = 45206^2 + 10546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134675027 + ... + 134675042.

Almost surely, 22154800552 is an apocalyptic number.

It is an amenable number.

2154800552 is a deficient number, since it is larger than the sum of its proper divisors (1885450498).

2154800552 is a wasteful number, since it uses less digits than its factorization.

2154800552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269350075 (or 269350071 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 2154800552 is about 46419.8292974026. The cubic root of 2154800552 is about 1291.6227703727.

The spelling of 2154800552 in words is "two billion, one hundred fifty-four million, eight hundred thousand, five hundred fifty-two".

Divisors: 1 2 4 8 269350069 538700138 1077400276 2154800552