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57531441152 = 21347149423
BaseRepresentation
bin110101100101001001…
…000010000000000000
312111111110120000121202
4311211021002000000
51420311022104102
642232442240332
74104453116063
oct654511020000
9174443500552
1057531441152
1122442aa9289
12b1971b60a8
13556b1b8993
142adaaa88da
15176ab87e02
hexd65242000

57531441152 has 56 divisors (see below), whose sum is σ = 117504642816. Its totient is φ = 28153495552.

The previous prime is 57531441133. The next prime is 57531441181. The reversal of 57531441152 is 25114413575.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310313 + ... + 459735.

Almost surely, 257531441152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57531441152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58752321408).

57531441152 is an abundant number, since it is smaller than the sum of its proper divisors (59973201664).

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

57531441152 is an equidigital number, since it uses as much as digits as its factorization.

57531441152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149496 (or 149472 counting only the distinct ones).

The product of its digits is 84000, while the sum is 38.

The spelling of 57531441152 in words is "fifty-seven billion, five hundred thirty-one million, four hundred forty-one thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 32 47 64 94 128 188 256 376 512 752 1024 1504 2048 3008 4096 6016 8192 12032 24064 48128 96256 149423 192512 298846 385024 597692 1195384 2390768 4781536 7022881 9563072 14045762 19126144 28091524 38252288 56183048 76504576 112366096 153009152 224732192 306018304 449464384 612036608 898928768 1224073216 1797857536 3595715072 7191430144 14382860288 28765720576 57531441152