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12028348705 = 529475917431
BaseRepresentation
bin10110011001111001…
…00000100100100001
31011001021110102110111
423030330200210201
5144113224124310
65305321131321
7604034164012
oct131474404441
934037412414
1012028348705
11511276445a
1223b8329b41
131198cabcc9
148216bb009
154a5ec028a
hex2ccf20921

12028348705 has 16 divisors (see below), whose sum is σ = 14935737600. Its totient is φ = 9288377280.

The previous prime is 12028348681. The next prime is 12028348733. The reversal of 12028348705 is 50784382021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-12028348705 is a prime.

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, 681340 + ... + 698770.

It is an arithmetic number, because the mean of its divisors is an integer number (933483600).

Almost surely, 212028348705 is an apocalyptic number.

It is an amenable number.

12028348705 is a deficient number, since it is larger than the sum of its proper divisors (2907388895).

12028348705 is a wasteful number, since it uses less digits than its factorization.

12028348705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22224.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 12028348705 in words is "twelve billion, twenty-eight million, three hundred forty-eight thousand, seven hundred five".

Divisors: 1 5 29 145 4759 17431 23795 87155 138011 505499 690055 2527495 82954129 414770645 2405669741 12028348705