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285680412706 = 213291429265141
BaseRepresentation
bin1000010100000111110…
…00010010100000100010
31000022101120002121211011
410022003320102200202
514140033141201311
6335123442411134
726432266304413
oct4120370224042
91008346077734
10285680412706
1110017a166437
1247449960aaa
1320c2a254630
14db8143780a
15767049d321
hex4283e12822

285680412706 has 32 divisors (see below), whose sum is σ = 477732855600. Its totient is φ = 127216293120.

The previous prime is 285680412671. The next prime is 285680412739. The reversal of 285680412706 is 607214086582.

It can be written as a sum of positive squares in 8 ways, for example, as 89825484681 + 195854928025 = 299709^2 + 442555^2 .

It is a super-2 number, since 2×2856804127062 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 285680412706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944896 + ... + 1210036.

Almost surely, 2285680412706 is an apocalyptic number.

285680412706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

285680412706 is a deficient number, since it is larger than the sum of its proper divisors (192052442894).

285680412706 is a wasteful number, since it uses less digits than its factorization.

285680412706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266614.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 285680412706 in words is "two hundred eighty-five billion, six hundred eighty million, four hundred twelve thousand, seven hundred six".

Divisors: 1 2 13 26 29 58 377 754 1429 2858 18577 37154 41441 82882 265141 530282 538733 1077466 3446833 6893666 7689089 15378178 99958157 199916314 378886489 757772978 4925524357 9851048714 10987708181 21975416362 142840206353 285680412706