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2642272471 = 4361448197
BaseRepresentation
bin1001110101111101…
…1110000011010111
320211010220100102101
42131133132003113
520402410204341
61114105022531
7122322642166
oct23537360327
96733810371
102642272471
111136548463
12618a84a47
13331553c47
141b0cc73dd
15106e80831
hex9d7de0d7

2642272471 has 4 divisors (see below), whose sum is σ = 2703720712. Its totient is φ = 2580824232.

The previous prime is 2642272469. The next prime is 2642272519. The reversal of 2642272471 is 1742722462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2642272471 - 21 = 2642272469 is a prime.

It is a super-3 number, since 3×26422724713 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 2642272471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642272421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30724056 + ... + 30724141.

It is an arithmetic number, because the mean of its divisors is an integer number (675930178).

Almost surely, 22642272471 is an apocalyptic number.

2642272471 is a deficient number, since it is larger than the sum of its proper divisors (61448241).

2642272471 is an equidigital number, since it uses as much as digits as its factorization.

2642272471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61448240.

The product of its digits is 75264, while the sum is 37.

The square root of 2642272471 is about 51403.0395112974. The cubic root of 2642272471 is about 1382.4810912724.

The spelling of 2642272471 in words is "two billion, six hundred forty-two million, two hundred seventy-two thousand, four hundred seventy-one".

Divisors: 1 43 61448197 2642272471