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53383478448 = 243333492
BaseRepresentation
bin110001101101111001…
…110011110010110000
312002210101102200111110
4301231321303302300
51333312132302243
640305105113320
73566615036256
oct615571636260
9162711380443
1053383478448
1120704644533
12a41a028840
135059a2c791
142825c3a5d6
1515c6936e33
hexc6de73cb0

53383478448 has 30 divisors (see below), whose sum is σ = 137911454724. Its totient is φ = 17793959232.

The previous prime is 53383478443. The next prime is 53383478453. The reversal of 53383478448 is 84487438335.

It is an interprime number because it is at equal distance from previous prime (53383478443) and next prime (53383478453).

It is not an unprimeable number, because it can be changed into a prime (53383478441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1584078 + ... + 1617426.

Almost surely, 253383478448 is an apocalyptic number.

It is an amenable number.

53383478448 is an abundant number, since it is smaller than the sum of its proper divisors (84527976276).

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

53383478448 is an frugal number, since it uses more digits than its factorization.

53383478448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66709 (or 33354 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 57.

The spelling of 53383478448 in words is "fifty-three billion, three hundred eighty-three million, four hundred seventy-eight thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 33349 66698 100047 133396 200094 266792 400188 533584 800376 1600752 1112155801 2224311602 3336467403 4448623204 6672934806 8897246408 13345869612 17794492816 26691739224 53383478448