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2149863080 = 23553746577
BaseRepresentation
bin1000000000100100…
…0100111010101000
312112211100100201112
42000021010322220
513400331104310
6553155005452
7104163351251
oct20011047250
95484310645
102149863080
11a035a5a52
124bbb99888
13283528b41
14165749b28
15c8b16705
hex80244ea8

2149863080 has 16 divisors (see below), whose sum is σ = 4837192020. Its totient is φ = 859945216.

The previous prime is 2149863041. The next prime is 2149863083. The reversal of 2149863080 is 803689412.

It can be written as a sum of positive squares in 2 ways, for example, as 2032747396 + 117115684 = 45086^2 + 10822^2 .

It is a super-2 number, since 2×21498630802 = 9243822525494172800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2149863083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26873249 + ... + 26873328.

Almost surely, 22149863080 is an apocalyptic number.

2149863080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149863080 is an abundant number, since it is smaller than the sum of its proper divisors (2687328940).

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

2149863080 is a wasteful number, since it uses less digits than its factorization.

2149863080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53746588 (or 53746584 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 2149863080 is about 46366.6160076407. The cubic root of 2149863080 is about 1290.6354820208.

The spelling of 2149863080 in words is "two billion, one hundred forty-nine million, eight hundred sixty-three thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 53746577 107493154 214986308 268732885 429972616 537465770 1074931540 2149863080