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168048644 = 22314331517
BaseRepresentation
bin10100000010000…
…11100000000100
3102201012202101212
422001003200010
5321010024034
624401510552
74110250511
oct1201034004
9381182355
10168048644
118694a485
1248342458
1328a7b08a
1418466308
15eb472ce
hexa043804

168048644 has 24 divisors (see below), whose sum is σ = 310641408. Its totient is φ = 79420320.

The previous prime is 168048631. The next prime is 168048653. The reversal of 168048644 is 446840861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10427 + ... + 21090.

It is an arithmetic number, because the mean of its divisors is an integer number (12943392).

Almost surely, 2168048644 is an apocalyptic number.

It is an amenable number.

168048644 is a deficient number, since it is larger than the sum of its proper divisors (142592764).

168048644 is a wasteful number, since it uses less digits than its factorization.

168048644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31595 (or 31593 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 168048644 is about 12963.3577440415. The cubic root of 168048644 is about 551.8380861321.

The spelling of 168048644 in words is "one hundred sixty-eight million, forty-eight thousand, six hundred forty-four".

Divisors: 1 2 4 31 43 62 86 124 172 1333 2666 5332 31517 63034 126068 977027 1355231 1954054 2710462 3908108 5420924 42012161 84024322 168048644