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531242225241 = 37131945942217
BaseRepresentation
bin1111011101100001000…
…00010000111001011001
31212210020011222012021220
413232300200100321121
532200441002201431
61044014352322253
753244451260210
oct7566040207131
91783204865256
10531242225241
11195331428762
1286b5bb43389
133b13299c9a0
141b9d8630077
15dc43838b96
hex7bb0810e59

531242225241 has 16 divisors (see below), whose sum is σ = 871782113664. Its totient is φ = 280215679104.

The previous prime is 531242225231. The next prime is 531242225249. The reversal of 531242225241 is 142522242135.

It is not a de Polignac number, because 531242225241 - 27 = 531242225113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531242225249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972970836 + ... + 972971381.

It is an arithmetic number, because the mean of its divisors is an integer number (54486382104).

Almost surely, 2531242225241 is an apocalyptic number.

It is an amenable number.

531242225241 is a deficient number, since it is larger than the sum of its proper divisors (340539888423).

531242225241 is a wasteful number, since it uses less digits than its factorization.

531242225241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945942240.

The product of its digits is 38400, while the sum is 33.

Adding to 531242225241 its reverse (142522242135), we get a palindrome (673764467376).

The spelling of 531242225241 in words is "five hundred thirty-one billion, two hundred forty-two million, two hundred twenty-five thousand, two hundred forty-one".

Divisors: 1 3 7 13 21 39 91 273 1945942217 5837826651 13621595519 25297248821 40864786557 75891746463 177080741747 531242225241