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90042368351 = 1321737847051
BaseRepresentation
bin101001111011011110…
…0011000000101011111
322121102012121020120112
41103312330120011133
52433401321241401
6105210452240235
76335222334305
oct1236674300537
9277365536515
1090042368351
113520662a061
121554b01007b
13864c837b00
1445027aa275
15251ee4a3bb
hex14f6f1815f

90042368351 has 24 divisors (see below), whose sum is σ = 106027192944. Its totient is φ = 76112524800.

The previous prime is 90042368293. The next prime is 90042368413. The reversal of 90042368351 is 15386324009.

It is not a de Polignac number, because 90042368351 - 26 = 90042368287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90042368299 and 90042368308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90042368951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317225 + ... + 529826.

It is an arithmetic number, because the mean of its divisors is an integer number (4417799706).

Almost surely, 290042368351 is an apocalyptic number.

90042368351 is a deficient number, since it is larger than the sum of its proper divisors (15984824593).

90042368351 is a wasteful number, since it uses less digits than its factorization.

90042368351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847131 (or 847118 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 90042368351 in words is "ninety billion, forty-two million, three hundred sixty-eight thousand, three hundred fifty-one".

Divisors: 1 13 17 37 169 221 481 629 2873 6253 8177 106301 847051 11011663 14399867 31340887 143151619 187198271 407431531 532795079 2433577523 5296609903 6926336027 90042368351