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90272099065 = 571254287603
BaseRepresentation
bin101010000010010100…
…0101110101011111001
322122000012212202212111
41110010220232223321
52434334124132230
6105245340212321
76344012116201
oct1240450565371
9278005782774
1090272099065
1135314279155
12155b3b3a0a1
138688301645
1445250cb401
1525351c892a
hex1504a2eaf9

90272099065 has 8 divisors (see below), whose sum is σ = 109852244928. Its totient is φ = 71200528560.

The previous prime is 90272098991. The next prime is 90272099089. The reversal of 90272099065 is 56099027209.

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

It is not a de Polignac number, because 90272099065 - 217 = 90271967993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127143447 + ... + 127144156.

It is an arithmetic number, because the mean of its divisors is an integer number (13731530616).

Almost surely, 290272099065 is an apocalyptic number.

It is an amenable number.

90272099065 is a deficient number, since it is larger than the sum of its proper divisors (19580145863).

90272099065 is a wasteful number, since it uses less digits than its factorization.

90272099065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254287679.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 90272099065 in words is "ninety billion, two hundred seventy-two million, ninety-nine thousand, sixty-five".

Divisors: 1 5 71 355 254287603 1271438015 18054419813 90272099065