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190374920 = 2354759373
BaseRepresentation
bin10110101100011…
…10010000001000
3111021020001021222
423112032100020
5342213444140
630520221212
74501105631
oct1326162010
9437201258
10190374920
119850954a
125390a808
13305972a8
141b3d8888
1511aa75b5
hexb58e408

190374920 has 16 divisors (see below), whose sum is σ = 428343660. Its totient is φ = 76149952.

The previous prime is 190374901. The next prime is 190374923. The reversal of 190374920 is 29473091.

190374920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 154206724 + 36168196 = 12418^2 + 6014^2 .

It is a super-2 number, since 2×1903749202 = 72485220330012800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190374923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2379647 + ... + 2379726.

Almost surely, 2190374920 is an apocalyptic number.

190374920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190374920 is an abundant number, since it is smaller than the sum of its proper divisors (237968740).

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

190374920 is a wasteful number, since it uses less digits than its factorization.

190374920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759384 (or 4759380 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 190374920 is about 13797.6418275008. The cubic root of 190374920 is about 575.2675956728.

The spelling of 190374920 in words is "one hundred ninety million, three hundred seventy-four thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 4759373 9518746 19037492 23796865 38074984 47593730 95187460 190374920