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2151313245 = 325307155723
BaseRepresentation
bin1000000000111010…
…0110111101011101
312112221002000222100
42000032212331131
513401214010440
6553250035313
7104211601164
oct20016467535
95487060870
102151313245
11a043a6534
12500578b39
13283915c23
14165a063db
15c8d01230
hex803a6f5d

2151313245 has 24 divisors (see below), whose sum is σ = 3741113376. Its totient is φ = 1143622368.

The previous prime is 2151313207. The next prime is 2151313267. The reversal of 2151313245 is 5423131512.

2151313245 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2151313245 - 213 = 2151305053 is a prime.

It is a super-2 number, since 2×21513132452 = 9256297356224860050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64047 + ... + 91676.

It is an arithmetic number, because the mean of its divisors is an integer number (155879724).

Almost surely, 22151313245 is an apocalyptic number.

It is an amenable number.

2151313245 is a deficient number, since it is larger than the sum of its proper divisors (1589800131).

2151313245 is a wasteful number, since it uses less digits than its factorization.

2151313245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156041 (or 156038 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2151313245 is about 46382.2514007244. The cubic root of 2151313245 is about 1290.9256111534.

Adding to 2151313245 its reverse (5423131512), we get a palindrome (7574444757).

The spelling of 2151313245 in words is "two billion, one hundred fifty-one million, three hundred thirteen thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 45 307 921 1535 2763 4605 13815 155723 467169 778615 1401507 2335845 7007535 47806961 143420883 239034805 430262649 717104415 2151313245