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10609109109 = 331957720071
BaseRepresentation
bin10011110000101101…
…00010100001110101
31000101100220120202000
421320112202201311
5133211412442414
64512422005513
7523621640154
oct117026424165
930340816660
1010609109109
114554624775
122080b76899
131000c55271
14728ddb59b
154215c9b09
hex2785a2875

10609109109 has 16 divisors (see below), whose sum is σ = 15718784640. Its totient is φ = 7072025760.

The previous prime is 10609109107. The next prime is 10609109111. The reversal of 10609109109 is 90190190601.

It is an interprime number because it is at equal distance from previous prime (10609109107) and next prime (10609109111).

It is not a de Polignac number, because 10609109109 - 21 = 10609109107 is a prime.

It is a super-2 number, since 2×106091091092 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10609109107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518544 + ... + 538614.

It is an arithmetic number, because the mean of its divisors is an integer number (982424040).

Almost surely, 210609109109 is an apocalyptic number.

It is an amenable number.

10609109109 is a deficient number, since it is larger than the sum of its proper divisors (5109675531).

10609109109 is a wasteful number, since it uses less digits than its factorization.

10609109109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39657 (or 39651 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The spelling of 10609109109 in words is "ten billion, six hundred nine million, one hundred nine thousand, one hundred nine".

Divisors: 1 3 9 27 19577 20071 58731 60213 176193 180639 528579 541917 392929967 1178789901 3536369703 10609109109