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168164480 = 2751123887
BaseRepresentation
bin10100000010111…
…11110010000000
3102201102122022002
422001133302000
5321022230410
624404203132
74111242311
oct1201376200
9381378262
10168164480
1186a19510
12483994a8
1328abba13
1418496608
15eb6b7a5
hexa05fc80

168164480 has 64 divisors (see below), whose sum is σ = 438583680. Its totient is φ = 61148160.

The previous prime is 168164467. The next prime is 168164489. The reversal of 168164480 is 84461861.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (168164489) 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, 4904 + ... + 18983.

It is an arithmetic number, because the mean of its divisors is an integer number (6852870).

Almost surely, 2168164480 is an apocalyptic number.

168164480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168164480 is an abundant number, since it is smaller than the sum of its proper divisors (270419200).

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

168164480 is a wasteful number, since it uses less digits than its factorization.

168164480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23917 (or 23905 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 168164480 is about 12967.8247983230. The cubic root of 168164480 is about 551.9648510841.

The spelling of 168164480 in words is "one hundred sixty-eight million, one hundred sixty-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 320 352 440 640 704 880 1408 1760 3520 7040 23887 47774 95548 119435 191096 238870 262757 382192 477740 525514 764384 955480 1051028 1313785 1528768 1910960 2102056 2627570 3057536 3821920 4204112 5255140 7643840 8408224 10510280 15287680 16816448 21020560 33632896 42041120 84082240 168164480