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231545401315350 = 235216361511539613
BaseRepresentation
bin110100101001011011011101…
…011001010001000000010110
31010100211112011010112202000020
4310221123131121101000112
5220322114440214042400
62140242253334130010
766525413616321333
oct6451333531210026
91110745133482006
10231545401315350
1167860942736a11
1221b770724b0906
139c27839c07a65
144126c002d398a
151bb8061ec42a0
hexd296dd651016

231545401315350 has 96 divisors (see below), whose sum is σ = 577849798650624. Its totient is φ = 61356617424000.

The previous prime is 231545401315343. The next prime is 231545401315409. The reversal of 231545401315350 is 53513104545132.

It is a super-2 number, since 2×2315454013153502 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149622144 + ... + 151161756.

It is an arithmetic number, because the mean of its divisors is an integer number (6019268735944).

Almost surely, 2231545401315350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231545401315350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288924899325312).

231545401315350 is an abundant number, since it is smaller than the sum of its proper divisors (346304397335274).

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

231545401315350 is a wasteful number, since it uses less digits than its factorization.

231545401315350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545942 (or 1545937 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 231545401315350 in words is "two hundred thirty-one trillion, five hundred forty-five billion, four hundred one million, three hundred fifteen thousand, three hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 163 326 489 815 978 1630 2445 4075 4890 6151 8150 12225 12302 18453 24450 30755 36906 61510 92265 153775 184530 307550 461325 922650 1002613 1539613 2005226 3007839 3079226 4618839 5013065 6015678 7698065 9237678 10026130 15039195 15396130 23094195 25065325 30078390 38490325 46188390 50130650 75195975 76980650 115470975 150391950 230941950 250956919 501913838 752870757 1254784595 1505741514 2509569190 3764353785 6273922975 7528707570 9470159563 12547845950 18821768925 18940319126 28410478689 37643537850 47350797815 56820957378 94701595630 142052393445 236753989075 284104786890 473507978150 710261967225 1420523934450 1543636008769 3087272017538 4630908026307 7718180043845 9261816052614 15436360087690 23154540131535 38590900219225 46309080263070 77181800438450 115772700657675 231545401315350