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31458452244061 is a prime number
BaseRepresentation
bin1110010011100011111011…
…10111110000011001011101
311010101101202121220012201011
413021301331313300121131
513110403402233302221
6150523451412215221
76424540526046043
oct711617567603135
9133341677805634
1031458452244061
11a029500198467
123640a3800a511
131472699c3018b
147aa850a74393
1539848e85c1e1
hex1c9c7ddf065d

31458452244061 has 2 divisors, whose sum is σ = 31458452244062. Its totient is φ = 31458452244060.

The previous prime is 31458452244049. The next prime is 31458452244101. The reversal of 31458452244061 is 16044225485413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31429691475961 + 28760768100 = 5606219^2 + 169590^2 .

It is a cyclic number.

It is not a de Polignac number, because 31458452244061 - 213 = 31458452235869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31458452243996 and 31458452244014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31458452248061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15729226122030 + 15729226122031.

It is an arithmetic number, because the mean of its divisors is an integer number (15729226122031).

Almost surely, 231458452244061 is an apocalyptic number.

It is an amenable number.

31458452244061 is a deficient number, since it is larger than the sum of its proper divisors (1).

31458452244061 is an equidigital number, since it uses as much as digits as its factorization.

31458452244061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3686400, while the sum is 49.

The spelling of 31458452244061 in words is "thirty-one trillion, four hundred fifty-eight billion, four hundred fifty-two million, two hundred forty-four thousand, sixty-one".