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2115425275 = 52312191461
BaseRepresentation
bin111111000010110…
…1101001111111011
312110102112201221021
41332011231033323
513313022102100
6545524523311
7103264550425
oct17605551773
95412481837
102115425275
11996114357
124b0550537
1327935bc42
14160d43815
15c5ab2a1a
hex7e16d3fb

2115425275 has 36 divisors (see below), whose sum is σ = 2730575232. Its totient is φ = 1625640000.

The previous prime is 2115425251. The next prime is 2115425281. The reversal of 2115425275 is 5725245112.

It is a de Polignac number, because none of the positive numbers 2k-2115425275 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2115425275.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4588545 + ... + 4589005.

It is an arithmetic number, because the mean of its divisors is an integer number (75849312).

Almost surely, 22115425275 is an apocalyptic number.

2115425275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2115425275 is a deficient number, since it is larger than the sum of its proper divisors (615149957).

2115425275 is a wasteful number, since it uses less digits than its factorization.

2115425275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 688 counting only the distinct ones).

The product of its digits is 28000, while the sum is 34.

The square root of 2115425275 is about 45993.7525648865. The cubic root of 2115425275 is about 1283.7069613567.

The spelling of 2115425275 in words is "two billion, one hundred fifteen million, four hundred twenty-five thousand, two hundred seventy-five".

Divisors: 1 5 25 31 155 191 461 775 955 961 2305 4775 4805 5921 11525 14291 24025 29605 71455 88051 148025 183551 357275 440255 443021 917755 2201275 2215105 2729581 4588775 11075525 13647905 68239525 84617011 423085055 2115425275