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2500405080 = 233520836709
BaseRepresentation
bin1001010100001001…
…0010011101011000
320110020221201221120
42111002102131120
520110100430310
61052040205240
7115651043505
oct22502223530
96406851846
102500405080
111073460388
12599469820
1330b041944
1419a1184ac
15e97aab70
hex95092758

2500405080 has 32 divisors (see below), whose sum is σ = 7501215600. Its totient is φ = 666774656.

The previous prime is 2500405057. The next prime is 2500405081. The reversal of 2500405080 is 805040052.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2500405080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500405081) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 10418235 + ... + 10418474.

Almost surely, 22500405080 is an apocalyptic number.

2500405080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500405080 is an abundant number, since it is smaller than the sum of its proper divisors (5000810520).

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

2500405080 is a wasteful number, since it uses less digits than its factorization.

2500405080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20836723 (or 20836719 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2500405080 is about 50004.0506359235. The cubic root of 2500405080 is about 1357.2821080912.

The spelling of 2500405080 in words is "two billion, five hundred million, four hundred five thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 20836709 41673418 62510127 83346836 104183545 125020254 166693672 208367090 250040508 312550635 416734180 500081016 625101270 833468360 1250202540 2500405080