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163850838 = 23187714549
BaseRepresentation
bin10011100010000…
…10101001010110
3102102022111002120
421301002221112
5313421211323
624131520410
74026465144
oct1161025126
9372274076
10163850838
1184542618
1246a59106
1327c3b478
1417a92594
15e5b85e3
hex9c42a56

163850838 has 16 divisors (see below), whose sum is σ = 327898800. Its totient is φ = 54584096.

The previous prime is 163850773. The next prime is 163850849. The reversal of 163850838 is 838058361.

163850838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1638508382 = 53694194226604488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163850838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3988 + ... + 18536.

It is an arithmetic number, because the mean of its divisors is an integer number (20493675).

Almost surely, 2163850838 is an apocalyptic number.

163850838 is an abundant number, since it is smaller than the sum of its proper divisors (164047962).

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

163850838 is a wasteful number, since it uses less digits than its factorization.

163850838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16431.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 163850838 is about 12800.4233523739. The cubic root of 163850838 is about 547.2043682430.

The spelling of 163850838 in words is "one hundred sixty-three million, eight hundred fifty thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 1877 3754 5631 11262 14549 29098 43647 87294 27308473 54616946 81925419 163850838