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80845304928 = 2531213694261
BaseRepresentation
bin100101101001011000…
…0010111010001100000
321201200020201000100220
41023102300113101200
52311032344224203
6101050111243040
75561264516313
oct1132260272140
9251606630326
1080845304928
11313170811a3
1213802b19480
1378152bb04b
143cad13897a
1521827e4653
hex12d2c17460

80845304928 has 48 divisors (see below), whose sum is σ = 212394185136. Its totient is φ = 26926179840.

The previous prime is 80845304927. The next prime is 80845304929. The reversal of 80845304928 is 82940354808.

It is an interprime number because it is at equal distance from previous prime (80845304927) and next prime (80845304929).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80845304921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230683 + ... + 463578.

It is an arithmetic number, because the mean of its divisors is an integer number (4424878857).

Almost surely, 280845304928 is an apocalyptic number.

It is an amenable number.

80845304928 is an abundant number, since it is smaller than the sum of its proper divisors (131548880208).

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

80845304928 is a wasteful number, since it uses less digits than its factorization.

80845304928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695487 (or 695479 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 80845304928 in words is "eighty billion, eight hundred forty-five million, three hundred four thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1213 2426 3639 4852 7278 9704 14556 19408 29112 38816 58224 116448 694261 1388522 2082783 2777044 4165566 5554088 8331132 11108176 16662264 22216352 33324528 66649056 842138593 1684277186 2526415779 3368554372 5052831558 6737108744 10105663116 13474217488 20211326232 26948434976 40422652464 80845304928