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2155027652 = 221928355627
BaseRepresentation
bin1000000001110011…
…0001110011000100
312120012001202011222
42000130301303010
513403141341102
6553501415512
7104255301311
oct20034616304
95505052158
102155027652
11a06503198
1250186a598
132846167bb
141662d1d08
15c92d6aa2
hex80731cc4

2155027652 has 12 divisors (see below), whose sum is σ = 3969787920. Its totient is φ = 1020802536.

The previous prime is 2155027639. The next prime is 2155027657. The reversal of 2155027652 is 2567205512.

It is not an unprimeable number, because it can be changed into a prime (2155027657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14177738 + ... + 14177889.

It is an arithmetic number, because the mean of its divisors is an integer number (330815660).

Almost surely, 22155027652 is an apocalyptic number.

It is an amenable number.

2155027652 is a deficient number, since it is larger than the sum of its proper divisors (1814760268).

2155027652 is a wasteful number, since it uses less digits than its factorization.

2155027652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28355650 (or 28355648 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 2155027652 is about 46422.2753858533. The cubic root of 2155027652 is about 1291.6681445995.

The spelling of 2155027652 in words is "two billion, one hundred fifty-five million, twenty-seven thousand, six hundred fifty-two".

Divisors: 1 2 4 19 38 76 28355627 56711254 113422508 538756913 1077513826 2155027652