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2797620231 = 37133220011
BaseRepresentation
bin1010011011000000…
…0100110000000111
321012222012211111010
42212300010300013
521212142321411
61141334413303
7126220244130
oct24660046007
97188184433
102797620231
11120620253a
12660b01233
133577a5cb3
141c77a4c87
151159197a6
hexa6c04c07

2797620231 has 8 divisors (see below), whose sum is σ = 4263040384. Its totient is φ = 1598640120.

The previous prime is 2797620197. The next prime is 2797620233. The reversal of 2797620231 is 1320267972.

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

It is not a de Polignac number, because 2797620231 - 27 = 2797620103 is a prime.

It is a super-2 number, since 2×27976202312 = 15653357913800986722, 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 2797620231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797620233) 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, 66609985 + ... + 66610026.

It is an arithmetic number, because the mean of its divisors is an integer number (532880048).

Almost surely, 22797620231 is an apocalyptic number.

2797620231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2797620231 is a deficient number, since it is larger than the sum of its proper divisors (1465420153).

2797620231 is a wasteful number, since it uses less digits than its factorization.

2797620231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133220021.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 2797620231 is about 52892.5347379004. The cubic root of 2797620231 is about 1409.0603250652.

The spelling of 2797620231 in words is "two billion, seven hundred ninety-seven million, six hundred twenty thousand, two hundred thirty-one".

Divisors: 1 3 7 21 133220011 399660033 932540077 2797620231