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1630470768 = 24373465317
BaseRepresentation
bin110000100101111…
…0000001001110000
311012122000111102020
41201023300021300
511314400031033
6425442351440
755255526043
oct14113601160
94178014366
101630470768
117673a3903
1239605b580
131cca44104
14116786c5a
159821c6b3
hex612f0270

1630470768 has 40 divisors (see below), whose sum is σ = 4269757968. Its totient is φ = 536044032.

The previous prime is 1630470763. The next prime is 1630470773. The reversal of 1630470768 is 8670740361.

It is an interprime number because it is at equal distance from previous prime (1630470763) and next prime (1630470773).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630470763) 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, 229155 + ... + 236162.

Almost surely, 21630470768 is an apocalyptic number.

It is an amenable number.

1630470768 is an abundant number, since it is smaller than the sum of its proper divisors (2639287200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1630470768 is a wasteful number, since it uses less digits than its factorization.

1630470768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465401 (or 465395 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 1630470768 is about 40379.0882512223. The cubic root of 1630470768 is about 1176.9852103069.

The spelling of 1630470768 in words is "one billion, six hundred thirty million, four hundred seventy thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 73 146 219 292 438 584 876 1168 1752 3504 465317 930634 1395951 1861268 2791902 3722536 5583804 7445072 11167608 22335216 33968141 67936282 101904423 135872564 203808846 271745128 407617692 543490256 815235384 1630470768