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1038420930 = 23534614031
BaseRepresentation
bin111101111001010…
…000101111000010
32200100222020201110
4331321100233002
54111313432210
6251012544150
734506301161
oct7571205702
92610866643
101038420930
11493186018
1224b922056
131371a0071
149bcad3d8
1561270420
hex3de50bc2

1038420930 has 16 divisors (see below), whose sum is σ = 2492210304. Its totient is φ = 276912240.

The previous prime is 1038420917. The next prime is 1038420941. The reversal of 1038420930 is 390248301.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 34614031 = 1038420930 / (1 + 0 + 3 + 8 + 4 + 2 + 0 + 9 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17306986 + ... + 17307045.

It is an arithmetic number, because the mean of its divisors is an integer number (155763144).

Almost surely, 21038420930 is an apocalyptic number.

1038420930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1038420930 is an abundant number, since it is smaller than the sum of its proper divisors (1453789374).

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

1038420930 is a wasteful number, since it uses less digits than its factorization.

1038420930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34614041.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1038420930 is about 32224.5392519428. The cubic root of 1038420930 is about 1012.6463717667.

The spelling of 1038420930 in words is "one billion, thirty-eight million, four hundred twenty thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 34614031 69228062 103842093 173070155 207684186 346140310 519210465 1038420930