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48172318845 = 357617521049
BaseRepresentation
bin101100110111010010…
…110100000001111101
311121100012201100102020
4230313102310001331
51242124103200340
634044031550353
73323516645160
oct546722640175
9147305640366
1048172318845
1119480022162
12940498b3b9
13470920a2a1
14248dacdad7
1513be1be9d0
hexb374b407d

48172318845 has 32 divisors (see below), whose sum is σ = 89530579200. Its totient is φ = 21660618240.

The previous prime is 48172318837. The next prime is 48172318853. The reversal of 48172318845 is 54881327184.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (48172318837) and next prime (48172318853).

It is not a de Polignac number, because 48172318845 - 23 = 48172318837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3754120 + ... + 3766929.

It is an arithmetic number, because the mean of its divisors is an integer number (2797830600).

Almost surely, 248172318845 is an apocalyptic number.

It is an amenable number.

48172318845 is a deficient number, since it is larger than the sum of its proper divisors (41358260355).

48172318845 is a wasteful number, since it uses less digits than its factorization.

48172318845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7521125.

The product of its digits is 1720320, while the sum is 51.

The spelling of 48172318845 in words is "forty-eight billion, one hundred seventy-two million, three hundred eighteen thousand, eight hundred forty-five".

Divisors: 1 3 5 7 15 21 35 61 105 183 305 427 915 1281 2135 6405 7521049 22563147 37605245 52647343 112815735 157942029 263236715 458783989 789710145 1376351967 2293919945 3211487923 6881759835 9634463769 16057439615 48172318845