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2005193925 = 325272315867
BaseRepresentation
bin111011110000100…
…1101010011000101
312011202010101221200
41313201031103011
513101312201200
6530550133113
7100455603300
oct16741152305
95152111850
102005193925
11939974969
1247b651199
1325c5754a7
1415044bb37
15bb08b800
hex7784d4c5

2005193925 has 108 divisors (see below), whose sum is σ = 4313402496. Its totient is φ = 886939200.

The previous prime is 2005193917. The next prime is 2005193933. The reversal of 2005193925 is 5293915002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2005193917) and next prime (2005193933).

It is not a de Polignac number, because 2005193925 - 23 = 2005193917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2005193925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 338842 + ... + 344708.

It is an arithmetic number, because the mean of its divisors is an integer number (39938912).

Almost surely, 22005193925 is an apocalyptic number.

2005193925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2005193925 is an abundant number, since it is smaller than the sum of its proper divisors (2308208571).

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

2005193925 is a wasteful number, since it uses less digits than its factorization.

2005193925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928 (or 5913 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 2005193925 is about 44779.3917444174. The cubic root of 2005193925 is about 1261.0107630304.

The spelling of 2005193925 in words is "two billion, five million, one hundred ninety-three thousand, nine hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 31 35 45 49 63 75 93 105 147 155 175 217 225 245 279 315 441 465 525 651 735 775 1085 1225 1395 1519 1575 1953 2205 2325 3255 3675 4557 5425 5867 6975 7595 9765 11025 13671 16275 17601 22785 29335 37975 41069 48825 52803 68355 88005 113925 123207 146675 181877 205345 264015 287483 341775 369621 440025 545631 616035 862449 909385 1026725 1273139 1320075 1437415 1636893 1848105 2587347 2728155 3080175 3819417 4312245 4546925 6365695 7187075 8184465 8911973 9240525 11458251 12936735 13640775 19097085 21561225 26735919 31828475 40922325 44559865 57291255 64683675 80207757 95485425 133679595 222799325 286456275 401038785 668397975 2005193925