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245387807108 = 2289689291593
BaseRepresentation
bin1110010010001001000…
…0001100100110000100
3212110101111110011220022
43210202100030212010
513010023234311413
6304421332154312
723504636642153
oct3444220144604
9773344404808
10245387807108
1195083024494
123b683a68998
131a1a8692b82
14bc3c05d59a
1565b2e68608
hex392240c984

245387807108 has 12 divisors (see below), whose sum is σ = 434253704220. Its totient is φ = 121315320192.

The previous prime is 245387807099. The next prime is 245387807111. The reversal of 245387807108 is 801708783542.

It can be written as a sum of positive squares in 2 ways, for example, as 33141474304 + 212246332804 = 182048^2 + 460702^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 245387807108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344645441 + ... + 344646152.

It is an arithmetic number, because the mean of its divisors is an integer number (36187808685).

Almost surely, 2245387807108 is an apocalyptic number.

It is an amenable number.

245387807108 is a deficient number, since it is larger than the sum of its proper divisors (188865897112).

245387807108 is a wasteful number, since it uses less digits than its factorization.

245387807108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689291686 (or 689291684 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 245387807108 in words is "two hundred forty-five billion, three hundred eighty-seven million, eight hundred seven thousand, one hundred eight".

Divisors: 1 2 4 89 178 356 689291593 1378583186 2757166372 61346951777 122693903554 245387807108