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83280925 = 5271336607
BaseRepresentation
bin1001111011011…
…00010000011101
312210201002221201
410331230100131
5132304442200
612132555501
72030606350
oct475542035
9183632851
1083280925
1143012212
1223a82b91
131433b870
14b0bc297
1574a0c6a
hex4f6c41d

83280925 has 24 divisors (see below), whose sum is σ = 127102976. Its totient is φ = 52712640.

The previous prime is 83280917. The next prime is 83280937. The reversal of 83280925 is 52908238.

It is not a de Polignac number, because 83280925 - 23 = 83280917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16029 + ... + 20578.

Almost surely, 283280925 is an apocalyptic number.

It is an amenable number.

83280925 is a deficient number, since it is larger than the sum of its proper divisors (43822051).

83280925 is a wasteful number, since it uses less digits than its factorization.

83280925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36637 (or 36632 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 83280925 is about 9125.8383176561. The cubic root of 83280925 is about 436.6986473738.

The spelling of 83280925 in words is "eighty-three million, two hundred eighty thousand, nine hundred twenty-five".

Divisors: 1 5 7 13 25 35 65 91 175 325 455 2275 36607 183035 256249 475891 915175 1281245 2379455 3331237 6406225 11897275 16656185 83280925