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8325990225 = 3252723229841
BaseRepresentation
bin1111100000100010…
…01000011101010001
3210111020211010102100
413300101020131101
5114022423141400
63454102511013
7413216514660
oct76021103521
923436733370
108325990225
113592893763
121744435469
13a28c40a47
1458dac4dd7
1533ae40100
hex1f0448751

8325990225 has 72 divisors (see below), whose sum is σ = 17784254592. Its totient is φ = 3640665600.

The previous prime is 8325990077. The next prime is 8325990241. The reversal of 8325990225 is 5220995238.

8325990225 is a `hidden beast` number, since 8 + 32 + 599 + 0 + 2 + 25 = 666.

It is not a de Polignac number, because 8325990225 - 212 = 8325986129 is a prime.

It is a super-2 number, since 2×83259902252 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 78696 + ... + 151145.

It is an arithmetic number, because the mean of its divisors is an integer number (247003536).

Almost surely, 28325990225 is an apocalyptic number.

It is an amenable number.

8325990225 is an abundant number, since it is smaller than the sum of its proper divisors (9458264367).

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

8325990225 is a wasteful number, since it uses less digits than its factorization.

8325990225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229887 (or 229879 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 8325990225 is about 91246.8641926943. The cubic root of 8325990225 is about 2026.8049932847.

The spelling of 8325990225 in words is "eight billion, three hundred twenty-five million, nine hundred ninety thousand, two hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 23 25 35 45 63 69 75 105 115 161 175 207 225 315 345 483 525 575 805 1035 1449 1575 1725 2415 4025 5175 7245 12075 36225 229841 689523 1149205 1608887 2068569 3447615 4826661 5286343 5746025 8044435 10342845 14479983 15859029 17238075 24133305 26431715 37004401 40222175 47577087 51714225 72399915 79295145 111013203 120666525 132158575 185022005 237885435 333039609 361999575 396475725 555066015 925110025 1189427175 1665198045 2775330075 8325990225