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12252794620 = 2251155694521
BaseRepresentation
bin10110110100101001…
…01100111011111100
31011121220210110101011
423122110230323330
5200043203411440
65343455525004
7612431015203
oct133224547374
934556713334
1012252794620
115218423a50
12245b529764
131203645241
1484342423a
154baa579ea
hex2da52cefc

12252794620 has 24 divisors (see below), whose sum is σ = 28070039088. Its totient is φ = 4455561600.

The previous prime is 12252794599. The next prime is 12252794621. The reversal of 12252794620 is 2649725221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12252794621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27847041 + ... + 27847480.

It is an arithmetic number, because the mean of its divisors is an integer number (1169584962).

Almost surely, 212252794620 is an apocalyptic number.

12252794620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12252794620 is an abundant number, since it is smaller than the sum of its proper divisors (15817244468).

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

12252794620 is a wasteful number, since it uses less digits than its factorization.

12252794620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55694541 (or 55694539 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 12252794620 in words is "twelve billion, two hundred fifty-two million, seven hundred ninety-four thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 55694521 111389042 222778084 278472605 556945210 612639731 1113890420 1225279462 2450558924 3063198655 6126397310 12252794620