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531352051272 = 2332717569108991
BaseRepresentation
bin1111011101101110000…
…11001101111001001000
31212210111211121221021200
413232313003031321020
532201202111120042
61044033314304200
753250253625550
oct7566703157110
91783454557250
10531352051272
11195388420679
1286b90888060
133b14c673ac3
141ba0905c160
15dc4d2cec4c
hex7bb70cde48

531352051272 has 192 divisors, whose sum is σ = 1744482355200. Its totient is φ = 142632161280.

The previous prime is 531352051267. The next prime is 531352051273. The reversal of 531352051272 is 272150253135.

531352051272 is a `hidden beast` number, since 5 + 3 + 1 + 3 + 520 + 5 + 127 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (531352051273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4820697 + ... + 4929687.

It is an arithmetic number, because the mean of its divisors is an integer number (9085845600).

Almost surely, 2531352051272 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 531352051272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872241177600).

531352051272 is an abundant number, since it is smaller than the sum of its proper divisors (1213130303928).

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

531352051272 is a wasteful number, since it uses less digits than its factorization.

531352051272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109596 (or 109589 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 531352051272 in words is "five hundred thirty-one billion, three hundred fifty-two million, fifty-one thousand, two hundred seventy-two".