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2057629207 = 8092543423
BaseRepresentation
bin111101010100100…
…1110111000010111
312022101210101122011
41322221032320113
513203223113312
6540102045051
7101663362654
oct17251167027
95271711564
102057629207
11966529307
12495119787
1326a3a419a
141573bac2b
15c0997da7
hex7aa4ee17

2057629207 has 4 divisors (see below), whose sum is σ = 2060173440. Its totient is φ = 2055084976.

The previous prime is 2057629201. The next prime is 2057629213. The reversal of 2057629207 is 7029267502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7029267502 = 23514633751.

It is an interprime number because it is at equal distance from previous prime (2057629201) and next prime (2057629213).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2057629207 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 2057629207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057629201) 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, 1270903 + ... + 1272520.

It is an arithmetic number, because the mean of its divisors is an integer number (515043360).

Almost surely, 22057629207 is an apocalyptic number.

2057629207 is a deficient number, since it is larger than the sum of its proper divisors (2544233).

2057629207 is an equidigital number, since it uses as much as digits as its factorization.

2057629207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544232.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 2057629207 is about 45361.0979474704. The cubic root of 2057629207 is about 1271.9080186032.

The spelling of 2057629207 in words is "two billion, fifty-seven million, six hundred twenty-nine thousand, two hundred seven".

Divisors: 1 809 2543423 2057629207