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48312151540 = 2252983296813
BaseRepresentation
bin101100111111101000…
…001110110111110100
311121200221211120210221
4230333220032313310
51242420402322130
634105545024124
73330135340522
oct547750166764
9147627746727
1048312151540
1119541a4a574
129443785044
13472c189423
1424a44cd312
1513cb5e187a
hexb3fa0edf4

48312151540 has 24 divisors (see below), whose sum is σ = 104953985640. Its totient is φ = 18658485888.

The previous prime is 48312151513. The next prime is 48312151541. The reversal of 48312151540 is 4515121384.

It can be written as a sum of positive squares in 4 ways, for example, as 3502035684 + 44810115856 = 59178^2 + 211684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 48312151496 and 48312151505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48312151541) 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, 41647827 + ... + 41648986.

It is an arithmetic number, because the mean of its divisors is an integer number (4373082735).

Almost surely, 248312151540 is an apocalyptic number.

It is an amenable number.

48312151540 is an abundant number, since it is smaller than the sum of its proper divisors (56641834100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48312151540 is a wasteful number, since it uses less digits than its factorization.

48312151540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83296851 (or 83296849 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 48312151540 in words is "forty-eight billion, three hundred twelve million, one hundred fifty-one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 83296813 166593626 333187252 416484065 832968130 1665936260 2415607577 4831215154 9662430308 12078037885 24156075770 48312151540