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2149636960 = 255109123259
BaseRepresentation
bin1000000000100000…
…1101101101100000
312112210220212112201
42000020031231200
513400301340320
6553150102544
7104161420102
oct20010155540
95483825481
102149636960
11a03461079
124bbaaaa54
13283479c43
141656cb572
15c8abe70a
hex8020db60

2149636960 has 48 divisors (see below), whose sum is σ = 5125150800. Its totient is φ = 851959296.

The previous prime is 2149636939. The next prime is 2149636963. The reversal of 2149636960 is 696369412.

It is a self number, because there is not a number n which added to its sum of digits gives 2149636960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149636963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44190 + ... + 79069.

It is an arithmetic number, because the mean of its divisors is an integer number (106773975).

Almost surely, 22149636960 is an apocalyptic number.

2149636960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149636960 is an abundant number, since it is smaller than the sum of its proper divisors (2975513840).

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

2149636960 is a wasteful number, since it uses less digits than its factorization.

2149636960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123383 (or 123375 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 2149636960 is about 46364.1775512086. The cubic root of 2149636960 is about 1290.5902312744.

The spelling of 2149636960 in words is "two billion, one hundred forty-nine million, six hundred thirty-six thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 109 160 218 436 545 872 1090 1744 2180 3488 4360 8720 17440 123259 246518 493036 616295 986072 1232590 1972144 2465180 3944288 4930360 9860720 13435231 19721440 26870462 53740924 67176155 107481848 134352310 214963696 268704620 429927392 537409240 1074818480 2149636960