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90842343 = 3971312383
BaseRepresentation
bin1010110101000…
…10010011100111
320022221021021020
411122202103213
5141223423333
613003022223
72152101324
oct532422347
9208837236
1090842343
1147307219
122650a973
1315a88487
14c0c9b4b
157e963b3
hex56a24e7

90842343 has 16 divisors (see below), whose sum is σ = 123357696. Its totient is φ = 59454720.

The previous prime is 90842267. The next prime is 90842357. The reversal of 90842343 is 34324809.

It is a de Polignac number, because none of the positive numbers 2k-90842343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90842243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36930 + ... + 39312.

It is an arithmetic number, because the mean of its divisors is an integer number (7709856).

Almost surely, 290842343 is an apocalyptic number.

90842343 is a deficient number, since it is larger than the sum of its proper divisors (32515353).

90842343 is a wasteful number, since it uses less digits than its factorization.

90842343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 90842343 is about 9531.1249598355. The cubic root of 90842343 is about 449.5342390801.

The spelling of 90842343 in words is "ninety million, eight hundred forty-two thousand, three hundred forty-three".

Divisors: 1 3 97 131 291 393 2383 7149 12707 38121 231151 312173 693453 936519 30280781 90842343