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890015412 = 2231113518657
BaseRepresentation
bin110101000011001…
…000111010110100
32022000201110121210
4311003020322310
53310320443122
6224152041420
731025002056
oct6503107264
92260643553
10890015412
11417432830
1220a093270
1311250bb50
14862bb8d6
155320840c
hex350c8eb4

890015412 has 48 divisors (see below), whose sum is σ = 2439767232. Its totient is φ = 248954880.

The previous prime is 890015393. The next prime is 890015507. The reversal of 890015412 is 214510098.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 890015412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257613 + ... + 261044.

It is an arithmetic number, because the mean of its divisors is an integer number (50828484).

Almost surely, 2890015412 is an apocalyptic number.

It is an amenable number.

890015412 is an abundant number, since it is smaller than the sum of its proper divisors (1549751820).

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

890015412 is a wasteful number, since it uses less digits than its factorization.

890015412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518688 (or 518686 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 890015412 is about 29833.1260849412. The cubic root of 890015412 is about 961.9057239372.

The spelling of 890015412 in words is "eight hundred ninety million, fifteen thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 132 143 156 286 429 572 858 1716 518657 1037314 1555971 2074628 3111942 5705227 6223884 6742541 11410454 13485082 17115681 20227623 22820908 26970164 34231362 40455246 68462724 74167951 80910492 148335902 222503853 296671804 445007706 890015412