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2152013531 = 16322957653
BaseRepresentation
bin1000000001000101…
…0001111011011011
312112222101121120212
42000101101323123
513401403413111
6553313041335
7104220545633
oct20021217333
95488347525
102152013531
11a04834688
1250085624b
13283acc8b5
14165b496c3
15c8ddd98b
hex80451edb

2152013531 has 8 divisors (see below), whose sum is σ = 2174708880. Its totient is φ = 2129434272.

The previous prime is 2152013477. The next prime is 2152013593. The reversal of 2152013531 is 1353102512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2152013531 - 26 = 2152013467 is a prime.

It is a super-2 number, since 2×21520135312 = 9262324475214175922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2152013497 and 2152013506.

It is not an unprimeable number, because it can be changed into a prime (2152019531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8501 + ... + 66153.

It is an arithmetic number, because the mean of its divisors is an integer number (271838610).

Almost surely, 22152013531 is an apocalyptic number.

2152013531 is a deficient number, since it is larger than the sum of its proper divisors (22695349).

2152013531 is a wasteful number, since it uses less digits than its factorization.

2152013531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58045.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2152013531 is about 46389.7998594519. The cubic root of 2152013531 is about 1291.0656680949.

The spelling of 2152013531 in words is "two billion, one hundred fifty-two million, thirteen thousand, five hundred thirty-one".

Divisors: 1 163 229 37327 57653 9397439 13202537 2152013531