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80000000125 = 5323179155453
BaseRepresentation
bin100101010000001011…
…1110010000001111101
321122111100010002011121
41022200113302001331
52302320000001000
6100430153350541
75531321531653
oct1124027620175
9248440102147
1080000000125
1130a22a07191
1213607a08451
13770c134ba6
143c2cb78dd3
1521334bdb1a
hex12a05f207d

80000000125 has 32 divisors (see below), whose sum is σ = 104763559680. Its totient is φ = 60875003200.

The previous prime is 80000000123. The next prime is 80000000141. The reversal of 80000000125 is 52100000008.

It is a happy number.

It is a sliding number, since 80000000125 = 125 + 80000000000 and 1/125 + 1/80000000000 = 0.0080000000125.

It is not a de Polignac number, because 80000000125 - 21 = 80000000123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80000000099 and 80000000108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80000000123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436899 + ... + 592351.

It is an arithmetic number, because the mean of its divisors is an integer number (3273861240).

Almost surely, 280000000125 is an apocalyptic number.

It is an amenable number.

80000000125 is a deficient number, since it is larger than the sum of its proper divisors (24763559555).

80000000125 is a wasteful number, since it uses less digits than its factorization.

80000000125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155670 (or 155660 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

It can be divided in two parts, 80000000 and 125, that multiplied together give a 10-th power (10000000000 = 1010).

The spelling of 80000000125 in words is "eighty billion, one hundred twenty-five", and thus it is an aban number.

Divisors: 1 5 23 25 115 125 179 575 895 2875 4117 4475 20585 22375 102925 155453 514625 777265 3575419 3886325 17877095 19431625 27826087 89385475 139130435 446927375 640000001 695652175 3200000005 3478260875 16000000025 80000000125