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106247831139 = 35437233873
BaseRepresentation
bin110001011110011011…
…1010011111001100011
3101011020121001001100000
41202330313103321203
53220043421044024
6120450511431043
710450630443432
oct1427467237143
9334217031300
10106247831139
114107214910a
1218712225483
13a03303b948
1451dcb43119
152b6c9c8cc9
hex18bcdd3e63

106247831139 has 12 divisors (see below), whose sum is σ = 159153130136. Its totient is φ = 70831887264.

The previous prime is 106247831117. The next prime is 106247831143. The reversal of 106247831139 is 931138742601.

106247831139 is a `hidden beast` number, since 1 + 0 + 62 + 478 + 3 + 113 + 9 = 666.

It is not a de Polignac number, because 106247831139 - 217 = 106247700067 is a prime.

It is a super-2 number, since 2×1062478311392 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106247831094 and 106247831103.

It is not an unprimeable number, because it can be changed into a prime (106247831539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218616694 + ... + 218617179.

Almost surely, 2106247831139 is an apocalyptic number.

106247831139 is a deficient number, since it is larger than the sum of its proper divisors (52905298997).

106247831139 is an frugal number, since it uses more digits than its factorization.

106247831139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437233888 (or 437233876 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 106247831139 in words is "one hundred six billion, two hundred forty-seven million, eight hundred thirty-one thousand, one hundred thirty-nine".

Divisors: 1 3 9 27 81 243 437233873 1311701619 3935104857 11805314571 35415943713 106247831139