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30941987126 = 2971031548493
BaseRepresentation
bin11100110100010010…
…010100000100110110
32221212101210210210012
4130310102110010312
51001332122042001
622114202100222
72143525360001
oct346422240466
987771723705
1030941987126
1112138a43996
125bb64aa672
132bc159c92b
1416d75b4538
15c1169b2bb
hex734494136

30941987126 has 16 divisors (see below), whose sum is σ = 47346752544. Its totient is φ = 15162833664.

The previous prime is 30941987123. The next prime is 30941987129. The reversal of 30941987126 is 62178914903.

It is an interprime number because it is at equal distance from previous prime (30941987123) and next prime (30941987129).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30941987123) 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, 754265 + ... + 794228.

It is an arithmetic number, because the mean of its divisors is an integer number (2959172034).

Almost surely, 230941987126 is an apocalyptic number.

30941987126 is a deficient number, since it is larger than the sum of its proper divisors (16404765418).

30941987126 is a wasteful number, since it uses less digits than its factorization.

30941987126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548695.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 30941987126 in words is "thirty billion, nine hundred forty-one million, nine hundred eighty-seven thousand, one hundred twenty-six".

Divisors: 1 2 97 103 194 206 9991 19982 1548493 3096986 150203821 159494779 300407642 318989558 15470993563 30941987126