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531331300442 = 24721126788913
BaseRepresentation
bin1111011101101011101…
…00000011110001011010
31212210110101120200111102
413232311310003301122
532201131303103232
61044031253431402
753246612351525
oct7566564036132
91783411520442
10531331300442
11195377738228
1286b8593b562
133b1482899c7
141ba063b9bbc
15dc4b581662
hex7bb5d03c5a

531331300442 has 16 divisors (see below), whose sum is σ = 817811966592. Its totient is φ = 258780889920.

The previous prime is 531331300441. The next prime is 531331300457. The reversal of 531331300442 is 244003133135.

It is not an unprimeable number, because it can be changed into a prime (531331300441) 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, 13374623 + ... + 13414290.

It is an arithmetic number, because the mean of its divisors is an integer number (51113247912).

Almost surely, 2531331300442 is an apocalyptic number.

531331300442 is a deficient number, since it is larger than the sum of its proper divisors (286480666150).

531331300442 is a wasteful number, since it uses less digits than its factorization.

531331300442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26789173.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 531331300442 its reverse (244003133135), we get a palindrome (775334433577).

The spelling of 531331300442 in words is "five hundred thirty-one billion, three hundred thirty-one million, three hundred thousand, four hundred forty-two".

Divisors: 1 2 47 94 211 422 9917 19834 26788913 53577826 1259078911 2518157822 5652460643 11304921286 265665650221 531331300442