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830155939743 = 31321286049737
BaseRepresentation
bin11000001010010010010…
…01100101111110011111
32221100202222212012110210
430011021021211332133
5102100124410032433
61433211322503503
7113656016026464
oct14051111457637
92840688765423
10830155939743
112a0081427649
12114a81664b93
136038b7400c0
142c2733a366b
15168da970463
hexc149265f9f

830155939743 has 8 divisors (see below), whose sum is σ = 1192018785328. Its totient is φ = 510865193664.

The previous prime is 830155939721. The next prime is 830155939801. The reversal of 830155939743 is 347939551038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 830155939743 - 222 = 830151745439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830155932743) 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, 10643024830 + ... + 10643024907.

It is an arithmetic number, because the mean of its divisors is an integer number (149002348166).

Almost surely, 2830155939743 is an apocalyptic number.

830155939743 is a deficient number, since it is larger than the sum of its proper divisors (361862845585).

830155939743 is a wasteful number, since it uses less digits than its factorization.

830155939743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21286049753.

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 830155939743 in words is "eight hundred thirty billion, one hundred fifty-five million, nine hundred thirty-nine thousand, seven hundred forty-three".

Divisors: 1 3 13 39 21286049737 63858149211 276718646581 830155939743