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2500513103 = 1123312111511
BaseRepresentation
bin1001010100001010…
…1100110101001111
320110021011020010102
42111002230311033
520110112404403
61052042401315
7115652003444
oct22502546517
96407136112
102500513103
111073524560
1259950023b
1330b07bb6a
1419a1459cb
15e97ccb88
hex950acd4f

2500513103 has 32 divisors (see below), whose sum is σ = 2954133504. Its totient is φ = 2092860000.

The previous prime is 2500513091. The next prime is 2500513121. The reversal of 2500513103 is 3013150052.

2500513103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-2500513103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500513123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1654118 + ... + 1655628.

It is an arithmetic number, because the mean of its divisors is an integer number (92316672).

Almost surely, 22500513103 is an apocalyptic number.

2500513103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2500513103 is a deficient number, since it is larger than the sum of its proper divisors (453620401).

2500513103 is a wasteful number, since it uses less digits than its factorization.

2500513103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 2500513103 is about 50005.1307667523. The cubic root of 2500513103 is about 1357.3016536673.

Adding to 2500513103 its reverse (3013150052), we get a palindrome (5513663155).

The spelling of 2500513103 in words is "two billion, five hundred million, five hundred thirteen thousand, one hundred three".

Divisors: 1 11 23 31 211 253 341 713 1511 2321 4853 6541 7843 16621 34753 46841 53383 71951 150443 318821 382283 515251 1077343 1654873 3507031 7332883 9883451 11850773 80661713 108717961 227319373 2500513103