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65630541 = 3191151413
BaseRepresentation
bin1111101001011…
…1000101001101
311120111101011210
43322113011031
5113300134131
610302405033
71424564454
oct372270515
9146441153
1065630541
1134057219
1219b90779
131079ba52
148a05b9b
155b66146
hex3e9714d

65630541 has 8 divisors (see below), whose sum is σ = 92113120. Its totient is φ = 41450832.

The previous prime is 65630533. The next prime is 65630561. The reversal of 65630541 is 14503656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65630541 - 23 = 65630533 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65630499 and 65630508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65630531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575650 + ... + 575763.

It is an arithmetic number, because the mean of its divisors is an integer number (11514140).

Almost surely, 265630541 is an apocalyptic number.

It is an amenable number.

65630541 is a deficient number, since it is larger than the sum of its proper divisors (26482579).

65630541 is a wasteful number, since it uses less digits than its factorization.

65630541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151435.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 65630541 is about 8101.2678637359. The cubic root of 65630541 is about 403.3685135779.

The spelling of 65630541 in words is "sixty-five million, six hundred thirty thousand, five hundred forty-one".

Divisors: 1 3 19 57 1151413 3454239 21876847 65630541