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2500472080 = 245170918289
BaseRepresentation
bin1001010100001010…
…0010110100010000
320110021002010212001
42111002202310100
520110110101310
61052041443344
7115651443031
oct22502426420
96407063761
102500472080
1110734a6757
125994a0554
1330b0662a2
1419a134a88
15e97c093a
hex950a2d10

2500472080 has 40 divisors (see below), whose sum is σ = 5817317400. Its totient is φ = 999548928.

The previous prime is 2500472057. The next prime is 2500472083. The reversal of 2500472080 is 802740052.

It can be written as a sum of positive squares in 4 ways, for example, as 547185664 + 1953286416 = 23392^2 + 44196^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2500472083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127576 + ... + 145864.

It is an arithmetic number, because the mean of its divisors is an integer number (145432935).

Almost surely, 22500472080 is an apocalyptic number.

2500472080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500472080 is an abundant number, since it is smaller than the sum of its proper divisors (3316845320).

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

2500472080 is a wasteful number, since it uses less digits than its factorization.

2500472080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20011 (or 20005 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2500472080 is about 50004.7205771615. The cubic root of 2500472080 is about 1357.2942310721.

The spelling of 2500472080 in words is "two billion, five hundred million, four hundred seventy-two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1709 3418 6836 8545 13672 17090 18289 27344 34180 36578 68360 73156 91445 136720 146312 182890 292624 365780 731560 1463120 31255901 62511802 125023604 156279505 250047208 312559010 500094416 625118020 1250236040 2500472080