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5090909191 = 19436231223
BaseRepresentation
bin1001011110111000…
…10001110000000111
3111010210102222112021
410233130101300013
540411233043231
62201055504011
7240105004564
oct45734216007
914123388467
105090909191
11218275a475
12ba0b28007
1363193b604
143641a786b
151ebe12811
hex12f711c07

5090909191 has 8 divisors (see below), whose sum is σ = 5483477120. Its totient is φ = 4710803832.

The previous prime is 5090909189. The next prime is 5090909227. The reversal of 5090909191 is 1919090905.

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 5090909191 - 21 = 5090909189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5090909111) 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, 3114795 + ... + 3116428.

It is an arithmetic number, because the mean of its divisors is an integer number (685434640).

Almost surely, 25090909191 is an apocalyptic number.

5090909191 is a deficient number, since it is larger than the sum of its proper divisors (392567929).

5090909191 is a wasteful number, since it uses less digits than its factorization.

5090909191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231285.

The product of its (nonzero) digits is 32805, while the sum is 43.

The square root of 5090909191 is about 71350.6075026695. The cubic root of 5090909191 is about 1720.2772663484.

The spelling of 5090909191 in words is "five billion, ninety million, nine hundred nine thousand, one hundred ninety-one".

Divisors: 1 19 43 817 6231223 118393237 267942589 5090909191