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90634231141 = 532811701061
BaseRepresentation
bin101010001101000111…
…0001001110101100101
322122221110021222200121
41110122032021311211
52441104330344031
6105345314041541
76356000152636
oct1243216116545
9278843258617
1090634231141
113548a72a363
12156952792b1
13871534498c
14455b23588d
152556dac011
hex151a389d65

90634231141 has 4 divisors (see below), whose sum is σ = 90635985484. Its totient is φ = 90632476800.

The previous prime is 90634231139. The next prime is 90634231169. The reversal of 90634231141 is 14113243609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33968333025 + 56665898116 = 184305^2 + 238046^2 .

It is a cyclic number.

It is not a de Polignac number, because 90634231141 - 21 = 90634231139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90634231097 and 90634231106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90634231111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797250 + ... + 903811.

It is an arithmetic number, because the mean of its divisors is an integer number (22658996371).

Almost surely, 290634231141 is an apocalyptic number.

It is an amenable number.

90634231141 is a deficient number, since it is larger than the sum of its proper divisors (1754343).

90634231141 is a wasteful number, since it uses less digits than its factorization.

90634231141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754342.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 90634231141 in words is "ninety billion, six hundred thirty-four million, two hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 53281 1701061 90634231141