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190838398495 = 5197193744567
BaseRepresentation
bin1011000110111011011…
…0101101111000011111
3200020120212010002220011
42301232312231320133
511111314112222440
6223400413104051
716534103423353
oct2615666557037
9606525102804
10190838398495
1173a30334408
1230b9b488027
1314cc423a4b4
149345441463
154e6dec59ea
hex2c6edade1f

190838398495 has 8 divisors (see below), whose sum is σ = 230168546784. Its totient is φ = 151895739744.

The previous prime is 190838398489. The next prime is 190838398547. The reversal of 190838398495 is 594893838091.

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 190838398495 - 217 = 190838267423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190838398495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96871299 + ... + 96873268.

It is an arithmetic number, because the mean of its divisors is an integer number (28771068348).

Almost surely, 2190838398495 is an apocalyptic number.

190838398495 is a deficient number, since it is larger than the sum of its proper divisors (39330148289).

190838398495 is a wasteful number, since it uses less digits than its factorization.

190838398495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193744769.

The product of its (nonzero) digits is 67184640, while the sum is 67.

The spelling of 190838398495 in words is "one hundred ninety billion, eight hundred thirty-eight million, three hundred ninety-eight thousand, four hundred ninety-five".

Divisors: 1 5 197 985 193744567 968722835 38167679699 190838398495