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1030774638 = 233737912251
BaseRepresentation
bin111101011100000…
…101111101101110
32122211120202222110
4331130011331232
54102334242023
6250141024450
734354303605
oct7534057556
92584522873
101030774638
11489933273
12249255126
1313572392a
149ac7ca3c
156075ea93
hex3d705f6e

1030774638 has 32 divisors (see below), whose sum is σ = 2123026560. Its totient is φ = 333396000.

The previous prime is 1030774631. The next prime is 1030774639. The reversal of 1030774638 is 8364770301.

It is a junction number, because it is equal to n+sod(n) for n = 1030774596 and 1030774605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030774631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78013 + ... + 90263.

It is an arithmetic number, because the mean of its divisors is an integer number (66344580).

Almost surely, 21030774638 is an apocalyptic number.

1030774638 is an abundant number, since it is smaller than the sum of its proper divisors (1092251922).

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

1030774638 is a wasteful number, since it uses less digits than its factorization.

1030774638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12672.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1030774638 is about 32105.6792172351. The cubic root of 1030774638 is about 1010.1547447767.

The spelling of 1030774638 in words is "one billion, thirty million, seven hundred seventy-four thousand, six hundred thirty-eight".

Divisors: 1 2 3 6 37 74 111 222 379 758 1137 2274 12251 14023 24502 28046 36753 42069 73506 84138 453287 906574 1359861 2719722 4643129 9286258 13929387 27858774 171795773 343591546 515387319 1030774638