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190945098 = 23219558319
BaseRepresentation
bin10110110000110…
…01011101001010
3111022022000102200
423120121131022
5342340220343
630540341030
74506002151
oct1330313512
9438260380
10190945098
1198868973
1253b44776
1330736986
141b506598
1511b6b4d3
hexb61974a

190945098 has 24 divisors (see below), whose sum is σ = 435489600. Its totient is φ = 60298344.

The previous prime is 190945093. The next prime is 190945141. The reversal of 190945098 is 890549091.

190945098 is a `hidden beast` number, since 190 + 9 + 450 + 9 + 8 = 666.

190945098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (190945093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278818 + ... + 279501.

It is an arithmetic number, because the mean of its divisors is an integer number (18145400).

Almost surely, 2190945098 is an apocalyptic number.

190945098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

190945098 is an abundant number, since it is smaller than the sum of its proper divisors (244544502).

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

190945098 is a wasteful number, since it uses less digits than its factorization.

190945098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558346 (or 558343 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 190945098 is about 13818.2885336788. The cubic root of 190945098 is about 575.8413372311.

The spelling of 190945098 in words is "one hundred ninety million, nine hundred forty-five thousand, ninety-eight".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 558319 1116638 1674957 3349914 5024871 10049742 10608061 21216122 31824183 63648366 95472549 190945098