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203425545631 = 7112641890203
BaseRepresentation
bin1011110101110100011…
…0110111110110011111
3201110002002001102200211
42331131012313312133
511313103414430011
6233241415233251
720461034415340
oct2753506676637
9643062042624
10203425545631
11792aa465350
1233512978827
131624bc1a659
149bbb01c0c7
155459075b21
hex2f5d1b7d9f

203425545631 has 8 divisors (see below), whose sum is σ = 253621459584. Its totient is φ = 158513412120.

The previous prime is 203425545611. The next prime is 203425545737. The reversal of 203425545631 is 136545524302.

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

It is not a de Polignac number, because 203425545631 - 25 = 203425545599 is a prime.

It is a super-2 number, since 2×2034255456312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203425545611) 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, 1320945025 + ... + 1320945178.

It is an arithmetic number, because the mean of its divisors is an integer number (31702682448).

Almost surely, 2203425545631 is an apocalyptic number.

203425545631 is a deficient number, since it is larger than the sum of its proper divisors (50195913953).

203425545631 is a wasteful number, since it uses less digits than its factorization.

203425545631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641890221.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 203425545631 in words is "two hundred three billion, four hundred twenty-five million, five hundred forty-five thousand, six hundred thirty-one".

Divisors: 1 7 11 77 2641890203 18493231421 29060792233 203425545631