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630638483853 = 3730030403993
BaseRepresentation
bin10010010110101001111…
…10111001100110001101
32020021210021120022001110
421023110332321212031
540313021422440403
61201413351202233
763363544444560
oct11132476714615
92207707508043
10630638483853
112234a7a8aa34
12a227b676379
13476133a38b1
14227474124d7
151160ea67103
hex92d4fb998d

630638483853 has 8 divisors (see below), whose sum is σ = 960972927808. Its totient is φ = 360364847904.

The previous prime is 630638483843. The next prime is 630638483863. The reversal of 630638483853 is 358384836036.

It is an interprime number because it is at equal distance from previous prime (630638483843) and next prime (630638483863).

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

It is not a de Polignac number, because 630638483853 - 24 = 630638483837 is a prime.

It is a super-3 number, since 3×6306384838533 (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 630638483793 and 630638483802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630638483803) 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, 15015201976 + ... + 15015202017.

It is an arithmetic number, because the mean of its divisors is an integer number (120121615976).

Almost surely, 2630638483853 is an apocalyptic number.

It is an amenable number.

630638483853 is a deficient number, since it is larger than the sum of its proper divisors (330334443955).

630638483853 is a wasteful number, since it uses less digits than its factorization.

630638483853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30030404003.

The product of its (nonzero) digits is 29859840, while the sum is 57.

The spelling of 630638483853 in words is "six hundred thirty billion, six hundred thirty-eight million, four hundred eighty-three thousand, eight hundred fifty-three".

Divisors: 1 3 7 21 30030403993 90091211979 210212827951 630638483853