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1057483930 = 25105748393
BaseRepresentation
bin111111000001111…
…110110010011010
32201200211202020111
4333001332302122
54131203441210
6252533314534
735130315346
oct7701766232
92650752214
101057483930
114a2a16368
12256195a4a
1313b115b49
14a0632626
1562c8888a
hex3f07ec9a

1057483930 has 8 divisors (see below), whose sum is σ = 1903471092. Its totient is φ = 422993568.

The previous prime is 1057483919. The next prime is 1057483937. The reversal of 1057483930 is 393847501.

It can be written as a sum of positive squares in 2 ways, for example, as 952277881 + 105206049 = 30859^2 + 10257^2 .

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

It is a super-2 number, since 2×10574839302 = 2236544524416489800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057483937) 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, 52874187 + ... + 52874206.

Almost surely, 21057483930 is an apocalyptic number.

1057483930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057483930 is a deficient number, since it is larger than the sum of its proper divisors (845987162).

1057483930 is a wasteful number, since it uses less digits than its factorization.

1057483930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105748400.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1057483930 is about 32518.9779974710. The cubic root of 1057483930 is about 1018.8054482975.

The spelling of 1057483930 in words is "one billion, fifty-seven million, four hundred eighty-three thousand, nine hundred thirty".

Divisors: 1 2 5 10 105748393 211496786 528741965 1057483930