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190853430 = 23515142131
BaseRepresentation
bin10110110000000…
…11000100110110
3111022010100200120
423120003010312
5342324302210
630534352410
74505140665
oct1330030466
9438110616
10190853430
1198806009
1253abb706
1330704031
141b4c0ddc
1511b4e270
hexb603136

190853430 has 32 divisors (see below), whose sum is σ = 461092608. Its totient is φ = 50556000.

The previous prime is 190853419. The next prime is 190853431. The reversal of 190853430 is 34358091.

It is a junction number, because it is equal to n+sod(n) for n = 190853391 and 190853400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190853431) 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, 16536 + ... + 25595.

It is an arithmetic number, because the mean of its divisors is an integer number (14409144).

Almost surely, 2190853430 is an apocalyptic number.

190853430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190853430 is an abundant number, since it is smaller than the sum of its proper divisors (270239178).

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

190853430 is a wasteful number, since it uses less digits than its factorization.

190853430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42292.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 190853430 is about 13814.9712268973. The cubic root of 190853430 is about 575.7491734388.

The spelling of 190853430 in words is "one hundred ninety million, eight hundred fifty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 151 302 453 755 906 1510 2265 4530 42131 84262 126393 210655 252786 421310 631965 1263930 6361781 12723562 19085343 31808905 38170686 63617810 95426715 190853430