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168730464 = 2537251087
BaseRepresentation
bin10100000111010…
…01111101100000
3102202111101200110
422003221331200
5321143333324
624424251320
74116120360
oct1203517540
9382441613
10168730464
1187275771
1248610b40
1328c59516
14185a29a0
15ec2e329
hexa0e9f60

168730464 has 48 divisors (see below), whose sum is σ = 506193408. Its totient is φ = 48208512.

The previous prime is 168730459. The next prime is 168730477. The reversal of 168730464 is 464037861.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124872 + ... + 126215.

It is an arithmetic number, because the mean of its divisors is an integer number (10545696).

Almost surely, 2168730464 is an apocalyptic number.

168730464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

168730464 is an abundant number, since it is smaller than the sum of its proper divisors (337462944).

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

168730464 is a wasteful number, since it uses less digits than its factorization.

168730464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251107 (or 251099 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 168730464 is about 12989.6290940119. The cubic root of 168730464 is about 552.5833991614.

The spelling of 168730464 in words is "one hundred sixty-eight million, seven hundred thirty thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 251087 502174 753261 1004348 1506522 1757609 2008696 3013044 3515218 4017392 5272827 6026088 7030436 8034784 10545654 12052176 14060872 21091308 24104352 28121744 42182616 56243488 84365232 168730464