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9955706149 = 12778391387
BaseRepresentation
bin10010100010110100…
…00000010100100101
3221200211102021101101
421101122000110211
5130342130044044
64323521200101
7501466051234
oct112132002445
927624367341
109955706149
114249811424
121b1a190031
13c2877c3ac
146a6312b1b
153d405dcd4
hex251680525

9955706149 has 4 divisors (see below), whose sum is σ = 10034097664. Its totient is φ = 9877314636.

The previous prime is 9955706113. The next prime is 9955706153. The reversal of 9955706149 is 9416075599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9416075599 = 71345153657.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9955706149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9955706149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955704149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39195567 + ... + 39195820.

It is an arithmetic number, because the mean of its divisors is an integer number (2508524416).

Almost surely, 29955706149 is an apocalyptic number.

It is an amenable number.

9955706149 is a deficient number, since it is larger than the sum of its proper divisors (78391515).

9955706149 is a wasteful number, since it uses less digits than its factorization.

9955706149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78391514.

The product of its (nonzero) digits is 3061800, while the sum is 55.

The square root of 9955706149 is about 99778.2849571990. The cubic root of 9955706149 is about 2151.2490415990.

The spelling of 9955706149 in words is "nine billion, nine hundred fifty-five million, seven hundred six thousand, one hundred forty-nine".

Divisors: 1 127 78391387 9955706149