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163845168 = 24331149739
BaseRepresentation
bin10011100010000…
…01010000110000
3102102022012022120
421301001100300
5313421021133
624131434240
74026442464
oct1161012060
9372265276
10163845168
1184539333
1246a55980
1327c38a06
1417a904a4
15e5b6ab3
hex9c41430

163845168 has 80 divisors (see below), whose sum is σ = 440448000. Its totient is φ = 52427520.

The previous prime is 163845161. The next prime is 163845181. The reversal of 163845168 is 861548361.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (163845161) 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, 221343 + ... + 222081.

It is an arithmetic number, because the mean of its divisors is an integer number (5505600).

Almost surely, 2163845168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163845168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220224000).

163845168 is an abundant number, since it is smaller than the sum of its proper divisors (276602832).

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

163845168 is a wasteful number, since it uses less digits than its factorization.

163845168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930 (or 924 counting only the distinct ones).

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

The square root of 163845168 is about 12800.2018734081. The cubic root of 163845168 is about 547.1980562326.

The spelling of 163845168 in words is "one hundred sixty-three million, eight hundred forty-five thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 93 124 149 186 248 298 372 447 496 596 739 744 894 1192 1478 1488 1788 2217 2384 2956 3576 4434 4619 5912 7152 8868 9238 11824 13857 17736 18476 22909 27714 35472 36952 45818 55428 68727 73904 91636 110111 110856 137454 183272 220222 221712 274908 330333 366544 440444 549816 660666 880888 1099632 1321332 1761776 2642664 3413441 5285328 6826882 10240323 13653764 20480646 27307528 40961292 54615056 81922584 163845168