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90294220801 = 1723230931511
BaseRepresentation
bin101010000010111110…
…1000111100000000001
322122001202111200012001
41110011331013200001
52434410310031201
6105251450304001
76344401133101
oct1240575074001
9278052450161
1090294220801
1135325808584
12155bb428001
13868ca78725
144528009201
1525370e8301
hex1505f47801

90294220801 has 8 divisors (see below), whose sum is σ = 99762413184. Its totient is φ = 81287891520.

The previous prime is 90294220799. The next prime is 90294220811. The reversal of 90294220801 is 10802249209.

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 90294220801 - 21 = 90294220799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90294220811) 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, 115465365 + ... + 115466146.

It is an arithmetic number, because the mean of its divisors is an integer number (12470301648).

Almost surely, 290294220801 is an apocalyptic number.

It is an amenable number.

90294220801 is a deficient number, since it is larger than the sum of its proper divisors (9468192383).

90294220801 is a wasteful number, since it uses less digits than its factorization.

90294220801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230931551.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 90294220801 in words is "ninety billion, two hundred ninety-four million, two hundred twenty thousand, eight hundred one".

Divisors: 1 17 23 391 230931511 3925835687 5311424753 90294220801