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2162072157 = 37149968683
BaseRepresentation
bin1000000011011110…
…1001101001011101
312120200022122102120
42000313221221131
513411442302112
6554312413153
7104402211240
oct20067515135
95520278376
102162072157
11a0a4848a3
125040a71b9
13285c1204b
14167207257
15c9c28e8c
hex80de9a5d

2162072157 has 16 divisors (see below), whose sum is σ = 3296832000. Its totient is φ = 1234627632.

The previous prime is 2162072141. The next prime is 2162072161. The reversal of 2162072157 is 7512702612.

2162072157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2162072157 - 24 = 2162072141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162074157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2863 + ... + 65820.

It is an arithmetic number, because the mean of its divisors is an integer number (206052000).

Almost surely, 22162072157 is an apocalyptic number.

It is an amenable number.

2162072157 is a deficient number, since it is larger than the sum of its proper divisors (1134759843).

2162072157 is a wasteful number, since it uses less digits than its factorization.

2162072157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70192.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 2162072157 is about 46498.0876703548. The cubic root of 2162072157 is about 1293.0740455093.

Adding to 2162072157 its reverse (7512702612), we get a palindrome (9674774769).

The spelling of 2162072157 in words is "two billion, one hundred sixty-two million, seventy-two thousand, one hundred fifty-seven".

Divisors: 1 3 7 21 1499 4497 10493 31479 68683 206049 480781 1442343 102955817 308867451 720690719 2162072157