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280007406680 = 2357000185167
BaseRepresentation
bin1000001001100011011…
…11011111010001011000
3222202202012100001112212
410010301233133101120
514041423344003210
6332344510254252
726141562454301
oct4046157372130
9882665301485
10280007406680
11a8828977001
1246325ab7388
1320534b48331
14d7a3c277a8
15743c407805
hex4131bdf458

280007406680 has 16 divisors (see below), whose sum is σ = 630016665120. Its totient is φ = 112002962656.

The previous prime is 280007406677. The next prime is 280007406683. The reversal of 280007406680 is 86604700082.

It is an interprime number because it is at equal distance from previous prime (280007406677) and next prime (280007406683).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280007406683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3500092544 + ... + 3500092623.

It is an arithmetic number, because the mean of its divisors is an integer number (39376041570).

Almost surely, 2280007406680 is an apocalyptic number.

280007406680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280007406680 is an abundant number, since it is smaller than the sum of its proper divisors (350009258440).

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

280007406680 is a wasteful number, since it uses less digits than its factorization.

280007406680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000185178 (or 7000185174 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 280007406680 in words is "two hundred eighty billion, seven million, four hundred six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 7000185167 14000370334 28000740668 35000925835 56001481336 70001851670 140003703340 280007406680