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190984280 = 23519923993
BaseRepresentation
bin10110110001000…
…11000001011000
3111022101000011212
423120203001120
5342342444110
630541242252
74506224324
oct1330430130
9438330155
10190984280
1198895353
1253b63388
133074b766
141b516984
1511b77e05
hexb623058

190984280 has 32 divisors (see below), whose sum is σ = 431892000. Its totient is φ = 76006656.

The previous prime is 190984271. The next prime is 190984291. The reversal of 190984280 is 82489091.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4037 + ... + 19956.

It is an arithmetic number, because the mean of its divisors is an integer number (13496625).

Almost surely, 2190984280 is an apocalyptic number.

190984280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190984280 is an abundant number, since it is smaller than the sum of its proper divisors (240907720).

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

190984280 is a wasteful number, since it uses less digits than its factorization.

190984280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24203 (or 24199 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 190984280 is about 13819.7062197429. The cubic root of 190984280 is about 575.8807221510.

The spelling of 190984280 in words is "one hundred ninety million, nine hundred eighty-four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 199 398 796 995 1592 1990 3980 7960 23993 47986 95972 119965 191944 239930 479860 959720 4774607 9549214 19098428 23873035 38196856 47746070 95492140 190984280