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2136550280 = 23553413757
BaseRepresentation
bin111111101011001…
…0010101110001000
312111220021222222212
41333112102232020
513333424102110
6552001404252
7103642243364
oct17726225610
95456258885
102136550280
119a7032937
124b7639688
13280847447
14163a822a4
15c7886e05
hex7f592b88

2136550280 has 16 divisors (see below), whose sum is σ = 4807238220. Its totient is φ = 854620096.

The previous prime is 2136550277. The next prime is 2136550291. The reversal of 2136550280 is 820556312.

It can be written as a sum of positive squares in 2 ways, for example, as 2030583844 + 105966436 = 45062^2 + 10294^2 .

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 3 ways as a sum of consecutive naturals, for example, 26706839 + ... + 26706918.

Almost surely, 22136550280 is an apocalyptic number.

2136550280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2136550280 is an abundant number, since it is smaller than the sum of its proper divisors (2670687940).

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

2136550280 is a wasteful number, since it uses less digits than its factorization.

2136550280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53413768 (or 53413764 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2136550280 is about 46222.8328859234. The cubic root of 2136550280 is about 1287.9659228025.

The spelling of 2136550280 in words is "two billion, one hundred thirty-six million, five hundred fifty thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 53413757 106827514 213655028 267068785 427310056 534137570 1068275140 2136550280