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163123480 = 23513313699
BaseRepresentation
bin10011011100100…
…01000100011000
3102100221112100101
421232101010120
5313224422410
624104145144
74020345442
oct1156210430
9370845311
10163123480
11840960a3
12467681b4
1327a45390
1417943492
15e4c2d3a
hex9b91118

163123480 has 32 divisors (see below), whose sum is σ = 395262000. Its totient is φ = 60230016.

The previous prime is 163123451. The next prime is 163123487. The reversal of 163123480 is 84321361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163123487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156330 + ... + 157369.

Almost surely, 2163123480 is an apocalyptic number.

163123480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163123480 is an abundant number, since it is smaller than the sum of its proper divisors (232138520).

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

163123480 is a wasteful number, since it uses less digits than its factorization.

163123480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313723 (or 313719 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 163123480 is about 12771.9802693239. The cubic root of 163123480 is about 546.3934602177.

The spelling of 163123480 in words is "one hundred sixty-three million, one hundred twenty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 313699 627398 1254796 1568495 2509592 3136990 4078087 6273980 8156174 12547960 16312348 20390435 32624696 40780870 81561740 163123480