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2154010513 = 23111783843
BaseRepresentation
bin1000000001100011…
…1001011110010001
312120010011001221011
42000120321132101
513402411314023
6553423530521
7104243534014
oct20030713621
95503131834
102154010513
11a05978a86
12501459a41
1328434b845
1416610937b
15c918550d
hex80639791

2154010513 has 8 divisors (see below), whose sum is σ = 2249702208. Its totient is φ = 2058488784.

The previous prime is 2154010501. The next prime is 2154010531. The reversal of 2154010513 is 3150104512.

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 a de Polignac number, because none of the positive numbers 2k-2154010513 is a prime.

It is a super-2 number, since 2×21540105132 = 9279522580229046338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154010613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16231 + ... + 67612.

It is an arithmetic number, because the mean of its divisors is an integer number (281212776).

Almost surely, 22154010513 is an apocalyptic number.

2154010513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2154010513 is a deficient number, since it is larger than the sum of its proper divisors (95691695).

2154010513 is a wasteful number, since it uses less digits than its factorization.

2154010513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84983.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2154010513 is about 46411.3188026369. The cubic root of 2154010513 is about 1291.4648969681.

The spelling of 2154010513 in words is "two billion, one hundred fifty-four million, ten thousand, five hundred thirteen".

Divisors: 1 23 1117 25691 83843 1928389 93652631 2154010513