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163857041 = 3161731187
BaseRepresentation
bin10011100010001…
…00001010010001
3102102022210121022
421301010022101
5313421411131
624132005225
74026522215
oct1161041221
9372283538
10163857041
1184547247
1246a60815
1327c4123a
1417a94945
15e5ba37b
hex9c44291

163857041 has 16 divisors (see below), whose sum is σ = 174417408. Its totient is φ = 153705600.

The previous prime is 163857013. The next prime is 163857091. The reversal of 163857041 is 140758361.

It is a cyclic number.

It is not a de Polignac number, because 163857041 - 26 = 163856977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163856992 and 163857010.

It is not an unprimeable number, because it can be changed into a prime (163857091) 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, 137450 + ... + 138636.

It is an arithmetic number, because the mean of its divisors is an integer number (10901088).

Almost surely, 2163857041 is an apocalyptic number.

It is an amenable number.

163857041 is a deficient number, since it is larger than the sum of its proper divisors (10560367).

163857041 is a wasteful number, since it uses less digits than its factorization.

163857041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 163857041 is about 12800.6656467545. The cubic root of 163857041 is about 547.2112734378.

The spelling of 163857041 in words is "one hundred sixty-three million, eight hundred fifty-seven thousand, forty-one".

Divisors: 1 31 61 73 1187 1891 2263 4453 36797 72407 86651 138043 2244617 2686181 5285711 163857041