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65425248 = 25327172383
BaseRepresentation
bin1111100110010…
…0111101100000
311120002221120100
43321210331200
5113222101443
610254142400
71423051110
oct371447540
9146087510
1065425248
1133a26a59
1219ab1a00
1310729485
148991040
155b253d3
hex3e64f60

65425248 has 288 divisors, whose sum is σ = 237758976. Its totient is φ = 16625664.

The previous prime is 65425223. The next prime is 65425273. The reversal of 65425248 is 84252456.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65425223) and next prime (65425273).

It is a tau number, because it is divible by the number of its divisors (288).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 788215 + ... + 788297.

It is an arithmetic number, because the mean of its divisors is an integer number (825552).

Almost surely, 265425248 is an apocalyptic number.

65425248 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65425248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118879488).

65425248 is an abundant number, since it is smaller than the sum of its proper divisors (172333728).

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

65425248 is a wasteful number, since it uses less digits than its factorization.

65425248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 135 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 65425248 is about 8088.5875157533. The cubic root of 65425248 is about 402.9474940163.

The spelling of 65425248 in words is "sixty-five million, four hundred twenty-five thousand, two hundred forty-eight".