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1530993012 = 223127582751
BaseRepresentation
bin101101101000001…
…0001100101110100
310221200211111120220
41123100101211310
511113413234022
6411530254340
752640140323
oct13320214564
93850744526
101530993012
1171622978a
123688873b0
131b5254233
141074900ba
158e61c85c
hex5b411974

1530993012 has 12 divisors (see below), whose sum is σ = 3572317056. Its totient is φ = 510331000.

The previous prime is 1530993007. The next prime is 1530993019. The reversal of 1530993012 is 2103990351.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530993019) 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, 63791364 + ... + 63791387.

It is an arithmetic number, because the mean of its divisors is an integer number (297693088).

Almost surely, 21530993012 is an apocalyptic number.

1530993012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1530993012 is an abundant number, since it is smaller than the sum of its proper divisors (2041324044).

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

1530993012 is a wasteful number, since it uses less digits than its factorization.

1530993012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127582758 (or 127582756 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 1530993012 is about 39127.9057962473. The cubic root of 1530993012 is about 1152.5445890369.

The spelling of 1530993012 in words is "one billion, five hundred thirty million, nine hundred ninety-three thousand, twelve".

Divisors: 1 2 3 4 6 12 127582751 255165502 382748253 510331004 765496506 1530993012