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190930020 = 22353182167
BaseRepresentation
bin10110110000101…
…01110001100100
3111022021020202020
423120111301210
5342334230040
630540143140
74505610201
oct1330256144
9438236666
10190930020
1198858606
1253b37ab0
133072cb58
141b500ca8
1511b66cd0
hexb615c64

190930020 has 24 divisors (see below), whose sum is σ = 534604224. Its totient is φ = 50914656.

The previous prime is 190930007. The next prime is 190930037. The reversal of 190930020 is 20039091.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1591024 + ... + 1591143.

It is an arithmetic number, because the mean of its divisors is an integer number (22275176).

Almost surely, 2190930020 is an apocalyptic number.

190930020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190930020 is an abundant number, since it is smaller than the sum of its proper divisors (343674204).

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

190930020 is a wasteful number, since it uses less digits than its factorization.

190930020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182179 (or 3182177 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 190930020 is about 13817.7429415951. The cubic root of 190930020 is about 575.8261797079.

The spelling of 190930020 in words is "one hundred ninety million, nine hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3182167 6364334 9546501 12728668 15910835 19093002 31821670 38186004 47732505 63643340 95465010 190930020