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423086190 = 23517978787
BaseRepresentation
bin11001001101111…
…100100001101110
31002111010000010220
4121031330201232
51331302224230
6105552112210
713325113302
oct3115744156
91074100126
10423086190
111a7903a0a
12b9835666
1369865677
1440293d02
1527223d10
hex1937c86e

423086190 has 32 divisors (see below), whose sum is σ = 1021092480. Its totient is φ = 112191264.

The previous prime is 423086189. The next prime is 423086197. The reversal of 423086190 is 91680324.

It is a super-2 number, since 2×4230861902 = 358003848337432200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423086197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34024 + ... + 44763.

It is an arithmetic number, because the mean of its divisors is an integer number (31909140).

Almost surely, 2423086190 is an apocalyptic number.

423086190 is an abundant number, since it is smaller than the sum of its proper divisors (598006290).

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

423086190 is a wasteful number, since it uses less digits than its factorization.

423086190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78976.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 423086190 is about 20569.0590450803. The cubic root of 423086190 is about 750.7170564438.

The spelling of 423086190 in words is "four hundred twenty-three million, eighty-six thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 179 358 537 895 1074 1790 2685 5370 78787 157574 236361 393935 472722 787870 1181805 2363610 14102873 28205746 42308619 70514365 84617238 141028730 211543095 423086190