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1900950053 = 6479533083
BaseRepresentation
bin111000101001110…
…0011001000100101
311220110222021020112
41301103203020211
512343120400203
6512343542405
765051544302
oct16123431045
94813867215
101900950053
11896044a02
1245075aa05
13243aa7122
141406740a9
15b1d496d8
hex714e3225

1900950053 has 8 divisors (see below), whose sum is σ = 1906504128. Its totient is φ = 1895405344.

The previous prime is 1900950049. The next prime is 1900950083. The reversal of 1900950053 is 3500590091.

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

It is a cyclic number.

It is not a de Polignac number, because 1900950053 - 22 = 1900950049 is a prime.

It is a super-2 number, since 2×19009500532 = 7227222208001405618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900950043) 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, 615050 + ... + 618132.

It is an arithmetic number, because the mean of its divisors is an integer number (238313016).

Almost surely, 21900950053 is an apocalyptic number.

It is an amenable number.

1900950053 is a deficient number, since it is larger than the sum of its proper divisors (5554075).

1900950053 is an equidigital number, since it uses as much as digits as its factorization.

1900950053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 1900950053 is about 43599.8859287499. The cubic root of 1900950053 is about 1238.7687338028.

The spelling of 1900950053 in words is "one billion, nine hundred million, nine hundred fifty thousand, fifty-three".

Divisors: 1 647 953 3083 616591 1994701 2938099 1900950053