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12120389085474 = 234359208404503
BaseRepresentation
bin1011000001011111111101…
…1111000110100100100010
31120220200211202101022020000
42300113333133012210202
53042040024101213344
641440010242000430
72360445353240625
oct260277737064442
946820752338200
1012120389085474
11395325672a66a
121439019946116
1369bc42396637
142dc8b6887dbc
1516042c130a69
hexb05ff7c6922

12120389085474 has 40 divisors (see below), whose sum is σ = 27234300582720. Its totient is φ = 4028875832664.

The previous prime is 12120389085443. The next prime is 12120389085499. The reversal of 12120389085474 is 47458098302121.

12120389085474 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 0 + 3 + 8 + 90 + 8 + 547 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 12120389085474.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 104144094 + ... + 104260409.

It is an arithmetic number, because the mean of its divisors is an integer number (680857514568).

Almost surely, 212120389085474 is an apocalyptic number.

12120389085474 is an abundant number, since it is smaller than the sum of its proper divisors (15113911497246).

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

12120389085474 is a wasteful number, since it uses less digits than its factorization.

12120389085474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208404876 (or 208404867 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 12120389085474 in words is "twelve trillion, one hundred twenty billion, three hundred eighty-nine million, eighty-five thousand, four hundred seventy-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 359 718 1077 2154 3231 6462 9693 19386 29079 58158 208404503 416809006 625213509 1250427018 1875640527 3751281054 5626921581 11253843162 16880764743 33761529486 74817216577 149634433154 224451649731 448903299462 673354949193 1346709898386 2020064847579 4040129695158 6060194542737 12120389085474