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190034908 = 22717715623
BaseRepresentation
bin10110101001110…
…11001111011100
3111020120202212221
423110323033130
5342122104113
630505035124
74465161430
oct1324731734
9436522787
10190034908
11982a7048
1253785aa4
13304a85bb
141b34a9c0
1511a3b98d
hexb53b3dc

190034908 has 48 divisors (see below), whose sum is σ = 408167424. Its totient is φ = 75559680.

The previous prime is 190034893. The next prime is 190034939. The reversal of 190034908 is 809430091.

It is a super-2 number, since 2×1900349082 = 72226532517136928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30985 + ... + 36607.

It is an arithmetic number, because the mean of its divisors is an integer number (8503488).

Almost surely, 2190034908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190034908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204083712).

190034908 is an abundant number, since it is smaller than the sum of its proper divisors (218132516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190034908 is a wasteful number, since it uses less digits than its factorization.

190034908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722 (or 5720 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 190034908 is about 13785.3149401818. The cubic root of 190034908 is about 574.9249131945.

Adding to 190034908 its reverse (809430091), we get a palindrome (999464999).

The spelling of 190034908 in words is "one hundred ninety million, thirty-four thousand, nine hundred eight".

Divisors: 1 2 4 7 14 17 28 34 68 71 119 142 238 284 476 497 994 1207 1988 2414 4828 5623 8449 11246 16898 22492 33796 39361 78722 95591 157444 191182 382364 399233 669137 798466 1338274 1596932 2676548 2794631 5589262 6786961 11178524 13573922 27147844 47508727 95017454 190034908