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90019230103 = 1179609102797
BaseRepresentation
bin101001111010110010…
…0000111000110010111
322121100121001200212101
41103311210013012113
52433324410330403
6105204304302531
76334521554665
oct1236544070627
9277317050771
1090019230103
11351a4565a40
1215543311a47
138647ac613a
1444dd6a5c35
15251cdc971d
hex14f5907197

90019230103 has 8 divisors (see below), whose sum is σ = 98204985360. Its totient is φ = 81833839680.

The previous prime is 90019230089. The next prime is 90019230109. The reversal of 90019230103 is 30103291009.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-90019230103 is a prime.

It is a super-2 number, since 2×900192301032 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90019230109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824301 + ... + 927097.

It is an arithmetic number, because the mean of its divisors is an integer number (12275623170).

Almost surely, 290019230103 is an apocalyptic number.

90019230103 is a deficient number, since it is larger than the sum of its proper divisors (8185755257).

90019230103 is a wasteful number, since it uses less digits than its factorization.

90019230103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182417.

The product of its (nonzero) digits is 1458, while the sum is 28.

The spelling of 90019230103 in words is "ninety billion, nineteen million, two hundred thirty thousand, one hundred three".

Divisors: 1 11 79609 102797 875699 1130767 8183566373 90019230103