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90480798221 = 1133619244669
BaseRepresentation
bin101010001000100010…
…0110110101000001101
322122112202120210021212
41110101010312220031
52440301041020341
6105322153304205
76352125044432
oct1242104665015
9278482523255
1090480798221
11354110629a0
1215651a05065
1386bc613378
144544ad5b89
1525486a05eb
hex1511136a0d

90480798221 has 8 divisors (see below), whose sum is σ = 98709664800. Its totient is φ = 82252488240.

The previous prime is 90480798211. The next prime is 90480798241. The reversal of 90480798221 is 12289708409.

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

It is a cyclic number.

It is not a de Polignac number, because 90480798221 - 214 = 90480781837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90480798221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90480798211) 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, 247475 + ... + 492143.

It is an arithmetic number, because the mean of its divisors is an integer number (12338708100).

Almost surely, 290480798221 is an apocalyptic number.

It is an amenable number.

90480798221 is a deficient number, since it is larger than the sum of its proper divisors (8228866579).

90480798221 is a wasteful number, since it uses less digits than its factorization.

90480798221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278299.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 90480798221 in words is "ninety billion, four hundred eighty million, seven hundred ninety-eight thousand, two hundred twenty-one".

Divisors: 1 11 33619 244669 369809 2691359 8225527111 90480798221