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531403001052 = 22371131101183683
BaseRepresentation
bin1111011101110100001…
…01100100110011011100
31212210122101111110020120
413232322011210303130
532201303132013202
61044042334314540
753251442660310
oct7567205446334
91783571443216
10531403001052
1119540415aa30
1286ba5958a50
133b15a0a25c1
141ba11b21b40
15dc529e60bc
hex7bba164cdc

531403001052 has 192 divisors, whose sum is σ = 1611575820288. Its totient is φ = 132251040000.

The previous prime is 531403001039. The next prime is 531403001113. The reversal of 531403001052 is 250100304135.

531403001052 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2801203 + ... + 2984885.

It is an arithmetic number, because the mean of its divisors is an integer number (8393624064).

Almost surely, 2531403001052 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 531403001052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805787910144).

531403001052 is an abundant number, since it is smaller than the sum of its proper divisors (1080172819236).

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

531403001052 is a wasteful number, since it uses less digits than its factorization.

531403001052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183840 (or 183838 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 531403001052 its reverse (250100304135), we get a palindrome (781503305187).

The spelling of 531403001052 in words is "five hundred thirty-one billion, four hundred three million, one thousand, fifty-two".