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285041190722 = 21725324192
BaseRepresentation
bin1000010010111011100…
…01110110011101000010
31000020202000021210002212
410021131301312131002
514132231021100342
6334540205542122
726410405100441
oct4113561663502
91006660253085
10285041190722
11aa981359502
12472ab874942
1320b579a5382
14db205a0d58
1576342d4182
hex425dc76742

285041190722 has 54 divisors (see below), whose sum is σ = 464030748363. Its totient is φ = 131292047744.

The previous prime is 285041190713. The next prime is 285041190737. The reversal of 285041190722 is 227091140582.

It can be written as a sum of positive squares in 5 ways, for example, as 266038292521 + 19002898201 = 515789^2 + 137851^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=377519.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 285041190722.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 680289029 + ... + 680289447.

Almost surely, 2285041190722 is an apocalyptic number.

285041190722 is a deficient number, since it is larger than the sum of its proper divisors (178989557641).

285041190722 is an frugal number, since it uses more digits than its factorization.

285041190722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 285041190722 in words is "two hundred eighty-five billion, forty-one million, one hundred ninety thousand, seven hundred twenty-two".

Divisors: 1 2 17 34 53 106 289 419 578 838 901 1802 2809 5618 7123 14246 15317 22207 30634 44414 47753 95506 121091 175561 242182 351122 377519 755038 811801 1176971 1623602 2353942 2984537 5969074 6417823 9304733 12835646 18609466 20008507 40017014 50737129 101474258 158180461 316360922 340144619 493150849 680289238 986301698 2689067837 5378135674 8383564433 16767128866 142520595361 285041190722