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12452355120 = 243551884813
BaseRepresentation
bin10111001100011011…
…11101110000110000
31012010211022011220210
423212031331300300
5201000300330440
65415345104120
7620403162222
oct134615756060
935124264823
1012452355120
115310036787
1224b6328040
131235aa748a
14861b30412
154cd326a80
hex2e637dc30

12452355120 has 40 divisors (see below), whose sum is σ = 38602301616. Its totient is φ = 3320627968.

The previous prime is 12452355119. The next prime is 12452355131. The reversal of 12452355120 is 2155325421.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×124523551202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25942167 + ... + 25942646.

Almost surely, 212452355120 is an apocalyptic number.

12452355120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12452355120 is an abundant number, since it is smaller than the sum of its proper divisors (26149946496).

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

12452355120 is a wasteful number, since it uses less digits than its factorization.

12452355120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51884829 (or 51884823 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 12452355120 in words is "twelve billion, four hundred fifty-two million, three hundred fifty-five thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 51884813 103769626 155654439 207539252 259424065 311308878 415078504 518848130 622617756 778272195 830157008 1037696260 1245235512 1556544390 2075392520 2490471024 3113088780 4150785040 6226177560 12452355120