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90630311871 = 3112746373087
BaseRepresentation
bin101010001100111111…
…1001100111110111111
322122221011220212110110
41110121333030332333
52441102324434441
6105345054041103
76355621640331
oct1243177147677
9278834825413
1090630311871
11354884a27a0
1215693aa9193
1387145a1a98
14455a8d5451
152556885b16
hex1519fccfbf

90630311871 has 8 divisors (see below), whose sum is σ = 131825908224. Its totient is φ = 54927461720.

The previous prime is 90630311813. The next prime is 90630311873. The reversal of 90630311871 is 17811303609.

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 90630311871 - 219 = 90629787583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90630311873) 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, 1373186511 + ... + 1373186576.

It is an arithmetic number, because the mean of its divisors is an integer number (16478238528).

Almost surely, 290630311871 is an apocalyptic number.

90630311871 is a deficient number, since it is larger than the sum of its proper divisors (41195596353).

90630311871 is a wasteful number, since it uses less digits than its factorization.

90630311871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746373101.

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 90630311871 in words is "ninety billion, six hundred thirty million, three hundred eleven thousand, eight hundred seventy-one".

Divisors: 1 3 11 33 2746373087 8239119261 30210103957 90630311871