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168048761 = 3134391223
BaseRepresentation
bin10100000010000…
…11100001111001
3102201012202120012
422001003201321
5321010030021
624401511305
74110251036
oct1201034171
9381182505
10168048761
118694a581
1248342535
1328a7b14a
141846638d
15eb4735b
hexa043879

168048761 has 8 divisors (see below), whose sum is σ = 169107840. Its totient is φ = 166993632.

The previous prime is 168048739. The next prime is 168048763. The reversal of 168048761 is 167840861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-168048761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168048763) 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, 136796 + ... + 138018.

It is an arithmetic number, because the mean of its divisors is an integer number (21138480).

Almost surely, 2168048761 is an apocalyptic number.

It is an amenable number.

168048761 is a deficient number, since it is larger than the sum of its proper divisors (1059079).

168048761 is a wasteful number, since it uses less digits than its factorization.

168048761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 168048761 is about 12963.3622567604. The cubic root of 168048761 is about 551.8382142003.

The spelling of 168048761 in words is "one hundred sixty-eight million, forty-eight thousand, seven hundred sixty-one".

Divisors: 1 313 439 1223 137407 382799 536897 168048761