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190299030 = 23519133211
BaseRepresentation
bin10110101011110…
…11101110010110
3111021002012012020
423111323232112
5342204032110
630514434010
74500341445
oct1325735626
9437065166
10190299030
1198467529
1253892906
133056b89c
141b3b8d5c
1511a8ed70
hexb57bb96

190299030 has 32 divisors (see below), whose sum is σ = 459122688. Its totient is φ = 50479200.

The previous prime is 190298993. The next prime is 190299091. The reversal of 190299030 is 30992091.

It is a junction number, because it is equal to n+sod(n) for n = 190298982 and 190299000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10876 + ... + 22335.

It is an arithmetic number, because the mean of its divisors is an integer number (14347584).

Almost surely, 2190299030 is an apocalyptic number.

190299030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190299030 is an abundant number, since it is smaller than the sum of its proper divisors (268823658).

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

190299030 is a wasteful number, since it uses less digits than its factorization.

190299030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33412.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 190299030 is about 13794.8914457490. The cubic root of 190299030 is about 575.1911450210.

The spelling of 190299030 in words is "one hundred ninety million, two hundred ninety-nine thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 191 382 573 955 1146 1910 2865 5730 33211 66422 99633 166055 199266 332110 498165 996330 6343301 12686602 19029903 31716505 38059806 63433010 95149515 190299030