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190270885 = 57172911027
BaseRepresentation
bin10110101011101…
…00110110100101
3111021000202120211
423111310312211
5342202132020
630514055421
74500163420
oct1325646645
9437022524
10190270885
1198448372
125387a571
133055bb2c
141b3ac9b7
1511a8685a
hexb574da5

190270885 has 32 divisors (see below), whose sum is σ = 285845760. Its totient is φ = 118551552.

The previous prime is 190270879. The next prime is 190270889. The reversal of 190270885 is 588072091.

It is not a de Polignac number, because 190270885 - 23 = 190270877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190270889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11742 + ... + 22768.

It is an arithmetic number, because the mean of its divisors is an integer number (8932680).

Almost surely, 2190270885 is an apocalyptic number.

It is an amenable number.

190270885 is a deficient number, since it is larger than the sum of its proper divisors (95574875).

190270885 is a wasteful number, since it uses less digits than its factorization.

190270885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11085.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 190270885 is about 13793.8712840160. The cubic root of 190270885 is about 575.1627869277.

The spelling of 190270885 in words is "one hundred ninety million, two hundred seventy thousand, eight hundred eighty-five".

Divisors: 1 5 7 17 29 35 85 119 145 203 493 595 1015 2465 3451 11027 17255 55135 77189 187459 319783 385945 937295 1312213 1598915 2238481 5436311 6561065 11192405 27181555 38054177 190270885