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1941937057 = 13114823947
BaseRepresentation
bin111001110111111…
…1001101110100001
312000100002121211201
41303233321232201
512434113441212
6520410241201
766060123034
oct16357715641
95010077751
101941937057
1190719a065
12462426201
1324c427ca8
14145ca301b
15b5743b57
hex73bf9ba1

1941937057 has 4 divisors (see below), whose sum is σ = 1956761136. Its totient is φ = 1927112980.

The previous prime is 1941937043. The next prime is 1941937087. The reversal of 1941937057 is 7507391491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7507391491 = 31723682623.

It is a cyclic number.

It is not a de Polignac number, because 1941937057 - 219 = 1941412769 is a prime.

It is a super-2 number, since 2×19419370572 = 7542239066699642498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1941936998 and 1941937016.

It is not an unprimeable number, because it can be changed into a prime (1941937037) 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, 7411843 + ... + 7412104.

It is an arithmetic number, because the mean of its divisors is an integer number (489190284).

Almost surely, 21941937057 is an apocalyptic number.

It is an amenable number.

1941937057 is a deficient number, since it is larger than the sum of its proper divisors (14824079).

1941937057 is a wasteful number, since it uses less digits than its factorization.

1941937057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14824078.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 1941937057 is about 44067.4149117009. The cubic root of 1941937057 is about 1247.6086669650.

The spelling of 1941937057 in words is "one billion, nine hundred forty-one million, nine hundred thirty-seven thousand, fifty-seven".

Divisors: 1 131 14823947 1941937057