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10155140245 = 52031028049
BaseRepresentation
bin10010111010100101…
…10010010010010101
3222012201200120112101
421131102302102111
5131244203441440
64355403522101
7506440160605
oct113522622225
928181616471
1010155140245
114341348198
121b74b29331
13c5ab98c33
146c49c8c05
153e680569a
hex25d4b2495

10155140245 has 4 divisors (see below), whose sum is σ = 12186168300. Its totient is φ = 8124112192.

The previous prime is 10155140231. The next prime is 10155140291. The reversal of 10155140245 is 54204155101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1245101796 + 8910038449 = 35286^2 + 94393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10155140245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015514020 + ... + 1015514029.

It is an arithmetic number, because the mean of its divisors is an integer number (3046542075).

Almost surely, 210155140245 is an apocalyptic number.

It is an amenable number.

10155140245 is a deficient number, since it is larger than the sum of its proper divisors (2031028055).

10155140245 is an equidigital number, since it uses as much as digits as its factorization.

10155140245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031028054.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 10155140245 its reverse (54204155101), we get a palindrome (64359295346).

The spelling of 10155140245 in words is "ten billion, one hundred fifty-five million, one hundred forty thousand, two hundred forty-five".

Divisors: 1 5 2031028049 10155140245