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2131114531 = 71323418841
BaseRepresentation
bin111111100000110…
…0011101000100011
312111112001211112211
41333001203220203
513331031131111
6551245102551
7103545113620
oct17701435043
95445054484
102131114531
119a3a5a987
124b5857a57
1327c693220
14163069347
15c7161521
hex7f063a23

2131114531 has 8 divisors (see below), whose sum is σ = 2622910304. Its totient is φ = 1686156480.

The previous prime is 2131114459. The next prime is 2131114547. The reversal of 2131114531 is 1354111312.

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 2131114531 - 29 = 2131114019 is a prime.

It is a super-2 number, since 2×21311145312 = 9083298288478699922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2131114591) 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, 11709330 + ... + 11709511.

It is an arithmetic number, because the mean of its divisors is an integer number (327863788).

Almost surely, 22131114531 is an apocalyptic number.

2131114531 is a deficient number, since it is larger than the sum of its proper divisors (491795773).

2131114531 is a wasteful number, since it uses less digits than its factorization.

2131114531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23418861.

The product of its digits is 360, while the sum is 22.

The square root of 2131114531 is about 46163.9960467029. The cubic root of 2131114531 is about 1286.8727267213.

Adding to 2131114531 its reverse (1354111312), we get a palindrome (3485225843).

The spelling of 2131114531 in words is "two billion, one hundred thirty-one million, one hundred fourteen thousand, five hundred thirty-one".

Divisors: 1 7 13 91 23418841 163931887 304444933 2131114531