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77000168 = 2372196429
BaseRepresentation
bin1001001011011…
…10110111101000
312100220000101002
410211232313220
5124203001133
611350214132
71623330200
oct445566750
9170800332
1077000168
113a512403
1221954348
1312c4cb3b
14a325400
156b5ece8
hex496ede8

77000168 has 24 divisors (see below), whose sum is σ = 167947650. Its totient is φ = 32999904.

The previous prime is 77000167. The next prime is 77000177. The reversal of 77000168 is 86100077.

It can be written as a sum of positive squares in only one way, i.e., 68923204 + 8076964 = 8302^2 + 2842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77000168.

It is not an unprimeable number, because it can be changed into a prime (77000167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97823 + ... + 98606.

Almost surely, 277000168 is an apocalyptic number.

It is an amenable number.

77000168 is an abundant number, since it is smaller than the sum of its proper divisors (90947482).

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

77000168 is a wasteful number, since it uses less digits than its factorization.

77000168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196449 (or 196438 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 77000168 is about 8774.9739600753. The cubic root of 77000168 is about 425.4323959164.

Subtracting 77000168 from its reverse (86100077), we obtain a palindrome (9099909).

The spelling of 77000168 in words is "seventy-seven million, one hundred sixty-eight", and thus it is an aban number.

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 196429 392858 785716 1375003 1571432 2750006 5500012 9625021 11000024 19250042 38500084 77000168