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2430590131 = 3118177951
BaseRepresentation
bin1001000011011111…
…1101110010110011
320021101120202211201
42100313331302303
514434212341011
61041103552031
7114142450414
oct22067756263
96241522751
102430590131
111038006382
12579bbb617
132c9739418
14190b4380b
15e35b9cc1
hex90dfdcb3

2430590131 has 4 divisors (see below), whose sum is σ = 2430699264. Its totient is φ = 2430481000.

The previous prime is 2430590117. The next prime is 2430590161. The reversal of 2430590131 is 1310950342.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(2430590131) divides (2430590131-1)3.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2430590131 is a prime.

It is a super-2 number, since 2×24305901312 = 11815536769829194322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2430590131.

It is not an unprimeable number, because it can be changed into a prime (2430590161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7795 + ... + 70156.

It is an arithmetic number, because the mean of its divisors is an integer number (607674816).

Almost surely, 22430590131 is an apocalyptic number.

2430590131 is the 31181-st heptagonal number.

2430590131 is a deficient number, since it is larger than the sum of its proper divisors (109133).

2430590131 is an equidigital number, since it uses as much as digits as its factorization.

2430590131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109132.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2430590131 is about 49301.0155169242. The cubic root of 2430590131 is about 1344.5302470869.

The spelling of 2430590131 in words is "two billion, four hundred thirty million, five hundred ninety thousand, one hundred thirty-one".

Divisors: 1 31181 77951 2430590131