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190133524 = 2272970069
BaseRepresentation
bin10110101010100…
…11010100010100
3111020202210011101
423111103110110
5342133233044
630511115444
74466052100
oct1325232424
9436683141
10190133524
1198364149
1253812b84
1330511459
141b374900
1511a5acd4
hexb553514

190133524 has 18 divisors (see below), whose sum is σ = 387057930. Its totient is φ = 81485712.

The previous prime is 190133521. The next prime is 190133533. The reversal of 190133524 is 425331091.

It can be written as a sum of positive squares in only one way, i.e., 133402500 + 56731024 = 11550^2 + 7532^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 190133492 and 190133501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190133521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 484839 + ... + 485230.

Almost surely, 2190133524 is an apocalyptic number.

190133524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

190133524 is an abundant number, since it is smaller than the sum of its proper divisors (196924406).

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

190133524 is a wasteful number, since it uses less digits than its factorization.

190133524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970087 (or 970078 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 190133524 is about 13788.8913259914. The cubic root of 190133524 is about 575.0243457871.

The spelling of 190133524 in words is "one hundred ninety million, one hundred thirty-three thousand, five hundred twenty-four".

Divisors: 1 2 4 7 14 28 49 98 196 970069 1940138 3880276 6790483 13580966 27161932 47533381 95066762 190133524